CSS Properties โจ
A complete reference of CSS properties with the dates they appeared and links to the docs. Explore how web styling has evolved from the early days to the present.
3928 properties
30 years
Last updated: 5/9/2026
Year-by-Year Stats
The evolution of CSS from 1996 to 2026
Total years: 30
Total features: 3928
Most active year: 2025
๐ Select year
CSS Era
2026year
197 properties
properties rule-width
rule-width thin
rule-width thick
rule-width medium
properties rule-visibility-items
rule-visibility-items normal
rule-visibility-items between
rule-visibility-items around
rule-visibility-items all
properties rule-style
rule-style solid
rule-style ridge
rule-style outset
rule-style none
rule-style inset
rule-style hidden
rule-style groove
rule-style double
rule-style dotted
rule-style dashed
properties rule-overlap
rule-overlap row-over-column
rule-overlap column-over-row
properties rule-inset-start
properties rule-inset-junction
properties rule-inset-end
properties rule-inset-cap
properties rule-inset
properties rule-color
rule-color transparent
rule-color currentColor
properties rule-break
rule-break normal
rule-break none
rule-break intersection
properties rule
rule transparent
rule thin
rule thick
rule solid
rule ridge
rule outset
rule none
rule medium
rule inset
rule hidden
rule groove
rule double
rule dotted
rule dashed
rule currentColor
properties row-rule-width
row-rule-width thin
row-rule-width thick
row-rule-width medium
properties row-rule-visibility-items
row-rule-visibility-items normal
row-rule-visibility-items between
row-rule-visibility-items around
row-rule-visibility-items all
properties row-rule-style
row-rule-style solid
row-rule-style ridge
row-rule-style outset
row-rule-style none
row-rule-style inset
row-rule-style hidden
row-rule-style groove
row-rule-style double
row-rule-style dotted
row-rule-style dashed
properties row-rule-inset-start
properties row-rule-inset-junction-start
properties row-rule-inset-junction-end
properties row-rule-inset-junction
properties row-rule-inset-end
properties row-rule-inset-cap-start
properties row-rule-inset-cap-end
properties row-rule-inset-cap
properties row-rule-inset
properties row-rule-color
row-rule-color transparent
row-rule-color currentColor
properties row-rule-break
row-rule-break normal
row-rule-break none
row-rule-break intersection
properties row-rule
row-rule transparent
row-rule thin
row-rule thick
row-rule solid
row-rule ridge
row-rule outset
row-rule none
row-rule medium
row-rule inset
row-rule hidden
row-rule groove
row-rule double
row-rule dotted
row-rule dashed
row-rule currentColor
properties column-rule-visibility-items
column-rule-visibility-items normal
column-rule-visibility-items between
column-rule-visibility-items around
column-rule-visibility-items all
properties column-rule-inset-start
properties column-rule-inset-junction-start
properties column-rule-inset-junction-end
properties column-rule-inset-junction
properties column-rule-inset-end
properties column-rule-inset-cap-start
properties column-rule-inset-cap-end
properties column-rule-inset-cap
properties column-rule-inset
properties column-rule-break
column-rule-break normal
column-rule-break none
column-rule-break intersection
position-anchor normal
global_keywords revert-rule
light-dark <image> values
color-mix color-mix() with one or more color arguments
attr <attr-name> accepts namespaces
properties view-transition-scope
view-transition-scope none
view-transition-scope all
properties border-shape
border-shape none
container <container-query> is optional (allows name-only queries)
vertical-align last
vertical-align first
vertical-align center
properties flow-tolerance
flow-tolerance normal
flow-tolerance infinite
dominant-baseline text-top
dominant-baseline text-bottom
display inline-grid-lanes
display grid-lanes
baseline-shift top
baseline-shift center
baseline-shift bottom
alignment-baseline text-top
alignment-baseline text-bottom
properties trigger-scope
trigger-scope none
trigger-scope all
properties timeline-trigger-source
timeline-trigger-source none
timeline-trigger-source auto
properties timeline-trigger-name
timeline-trigger-name none
properties timeline-trigger-active-range-start
timeline-trigger-active-range-start normal
timeline-trigger-active-range-start auto
properties timeline-trigger-active-range-end
timeline-trigger-active-range-end normal
timeline-trigger-active-range-end auto
properties timeline-trigger-active-range
timeline-trigger-active-range normal
timeline-trigger-active-range auto
properties timeline-trigger-activation-range-start
timeline-trigger-activation-range-start normal
properties timeline-trigger-activation-range-end
timeline-trigger-activation-range-end normal
properties timeline-trigger-activation-range
timeline-trigger-activation-range normal
properties timeline-trigger
timeline-trigger normal
timeline-trigger none
timeline-trigger auto
properties animation-trigger
animation-trigger none
at-rules custom-media
columns column-height
properties column-wrap
column-wrap wrap
column-wrap nowrap
column-wrap auto
properties column-height
column-height auto
base-select listbox
scroll-state_queries scrolled
position-anchor none
properties caret-shape
caret-shape underscore
caret-shape block
caret-shape bar
caret-shape auto
anchor-name Positioning applies after layout, such as zoom, position, and transform
selectors search-text
marker quotes support
marker counter-increment, counter-reset, and counter-set support
Specification: 1 2 3
๐ Browser Support
2025year
360 properties
position-visibility anchors-valid
position-try-fallbacks flip-y
position-try-fallbacks flip-x
position-try flip-y
position-try flip-x
url referrer-policy
url cross-origin
types random
random step
random element-shared
random dashed-ident
properties text-decoration-inset
text-decoration-inset auto
color colorSpace parameter accepts display-p3-linear value
container Anchor position queries (anchored())
anchor_position_queries fallback
fallback any query value
container-type anchored
text-autospace insert
style_queries_for_custom_properties Range syntax
properties interest-delay-start
interest-delay-start normal
properties interest-delay-end
interest-delay-end normal
properties interest-delay
interest-delay normal
selectors target-before
selectors target-after
selectors interest-target
selectors interest-source
style Range syntax for style queries
perspective-origin y-start
perspective-origin y-end
perspective-origin x-start
perspective-origin x-end
offset-position y-start
offset-position y-end
offset-position x-start
offset-position x-end
offset-anchor y-start
offset-anchor y-end
offset-anchor x-start
offset-anchor x-end
offset y-start
offset y-end
offset x-start
offset x-end
object-position y-start
object-position y-end
object-position x-start
object-position x-end
mask-position y-start
mask-position y-end
mask-position x-start
mask-position x-end
mask y-start
mask y-end
mask x-start
mask x-end
background-position-y y-start
background-position-y y-end
background-position-x x-start
background-position-x x-end
background-position y-start
background-position y-end
background-position x-start
background-position x-end
background y-start
background y-end
background x-start
background x-end
color contrast-color
properties view-transition-group
view-transition-group normal
view-transition-group nearest
view-transition-group contain
properties scroll-target-group
scroll-target-group none
scroll-target-group auto
alt_text counters
properties caret-animation
caret-animation manual
caret-animation auto
selectors view-transition-group-children
sign Divisions between typed values produce unitless number ("typed arithmetic")
calc Divisions between typed values produce unitless number ("typed arithmetic")
nesting at-scope
at-rules function
function result
properties corner-top-shape
corner-top-shape squircle
corner-top-shape square
corner-top-shape scoop
corner-top-shape round
corner-top-shape notch
corner-top-shape bevel
properties corner-top-right-shape
corner-top-right-shape squircle
corner-top-right-shape square
corner-top-right-shape scoop
corner-top-right-shape round
corner-top-right-shape notch
corner-top-right-shape bevel
properties corner-top-left-shape
corner-top-left-shape squircle
corner-top-left-shape square
corner-top-left-shape scoop
corner-top-left-shape round
corner-top-left-shape notch
corner-top-left-shape bevel
properties corner-start-start-shape
corner-start-start-shape squircle
corner-start-start-shape square
corner-start-start-shape scoop
corner-start-start-shape round
corner-start-start-shape notch
corner-start-start-shape bevel
properties corner-start-end-shape
corner-start-end-shape squircle
corner-start-end-shape square
corner-start-end-shape scoop
corner-start-end-shape round
corner-start-end-shape notch
corner-start-end-shape bevel
properties corner-shape
corner-shape squircle
corner-shape square
corner-shape scoop
corner-shape round
corner-shape notch
corner-shape bevel
properties corner-right-shape
corner-right-shape squircle
corner-right-shape square
corner-right-shape scoop
corner-right-shape round
corner-right-shape notch
corner-right-shape bevel
properties corner-left-shape
corner-left-shape squircle
corner-left-shape square
corner-left-shape scoop
corner-left-shape round
corner-left-shape notch
corner-left-shape bevel
properties corner-inline-start-shape
corner-inline-start-shape squircle
corner-inline-start-shape square
corner-inline-start-shape scoop
corner-inline-start-shape round
corner-inline-start-shape notch
corner-inline-start-shape bevel
properties corner-inline-end-shape
corner-inline-end-shape squircle
corner-inline-end-shape square
corner-inline-end-shape scoop
corner-inline-end-shape round
corner-inline-end-shape notch
corner-inline-end-shape bevel
properties corner-end-start-shape
corner-end-start-shape squircle
corner-end-start-shape square
corner-end-start-shape scoop
corner-end-start-shape round
corner-end-start-shape notch
corner-end-start-shape bevel
properties corner-end-end-shape
corner-end-end-shape squircle
corner-end-end-shape square
corner-end-end-shape scoop
corner-end-end-shape round
corner-end-end-shape notch
corner-end-end-shape bevel
properties corner-bottom-shape
corner-bottom-shape squircle
corner-bottom-shape square
corner-bottom-shape scoop
corner-bottom-shape round
corner-bottom-shape notch
corner-bottom-shape bevel
properties corner-bottom-right-shape
corner-bottom-right-shape squircle
corner-bottom-right-shape square
corner-bottom-right-shape scoop
corner-bottom-right-shape round
corner-bottom-right-shape notch
corner-bottom-right-shape bevel
properties corner-bottom-left-shape
corner-bottom-left-shape squircle
corner-bottom-left-shape square
corner-bottom-left-shape scoop
corner-bottom-left-shape round
corner-bottom-left-shape notch
corner-bottom-left-shape bevel
properties corner-block-start-shape
corner-block-start-shape squircle
corner-block-start-shape square
corner-block-start-shape scoop
corner-block-start-shape round
corner-block-start-shape notch
corner-block-start-shape bevel
properties corner-block-end-shape
corner-block-end-shape squircle
corner-block-end-shape square
corner-block-end-shape scoop
corner-block-end-shape round
corner-block-end-shape notch
corner-block-end-shape bevel
types type
types superellipse
types dashed-function
types corner-shape-value
corner-shape-value superellipse
corner-shape-value squircle
corner-shape-value square
corner-shape-value scoop
corner-shape-value round
corner-shape-value notch
corner-shape-value bevel
media vertical-viewport-segments
media horizontal-viewport-segments
min-inline-size stretch
min-block-size stretch
max-inline-size stretch
max-block-size stretch
inline-size stretch
flex-basis stretch
flex stretch
block-size stretch
types sibling-index
types sibling-count
types progress
env viewport-segment-width
env viewport-segment-top
env viewport-segment-right
env viewport-segment-left
env viewport-segment-height
env viewport-segment-bottom
env preferred-text-scale
properties reading-order
properties reading-flow
reading-flow source-order
reading-flow normal
reading-flow grid-rows
reading-flow grid-order
reading-flow grid-columns
reading-flow flex-visual
reading-flow flex-flow
types if
if style
properties dynamic-range-limit
dynamic-range-limit standard
dynamic-range-limit no-limit
dynamic-range-limit <dynamic-range-limit-mix()> values
dynamic-range-limit constrained
types dynamic-range-limit-mix
properties scroll-marker-group
scroll-marker-group none
scroll-marker-group before
scroll-marker-group after
properties interactivity
interactivity inert
interactivity auto
font-synthesis-style oblique-only
appearance base-select
base-select Base styling for single dropdown: <select>
selectors target-current
selectors scroll-marker-group
selectors scroll-marker
selectors scroll-button
scroll-button up
scroll-button star
scroll-button right
scroll-button left
scroll-button inline-start
scroll-button inline-end
scroll-button down
scroll-button block-start
scroll-button block-end
selectors picker
selectors column
column ::column::scroll-marker nested pseudo-elements
before ::before::marker nested pseudo-elements
after ::after::marker nested pseudo-elements
font-face font-width
view-transition-name match-element
properties text-autospace
text-autospace normal
text-autospace no-autospace
text-autospace ideograph-numeric
text-autospace ideograph-alpha
text-autospace auto
properties font-width
font-width ultra-expanded
font-width ultra-condensed
font-width semi-expanded
font-width semi-condensed
font-width percentage
font-width normal
font-width extra-expanded
font-width extra-condensed
font-width expanded
font-width condensed
basic-shape shape
selectors has-slotted
repeating-radial-gradient Single color stop and 0-1 positions
repeating-linear-gradient Single color stop and 0-1 positions
repeating-conic-gradient Single color stop and 0-1 positions
radial-gradient Single color stop and 0-1 positions
linear-gradient Single color stop and 0-1 positions
conic-gradient Single color stop and 0-1 positions
container Scroll-state queries
scroll-state_queries stuck
scroll-state_queries snapped
scroll-state_queries scrollable
properties scroll-initial-target
scroll-initial-target none
scroll-initial-target nearest
container-type scroll-state
selectors picker-icon
selectors open
selectors checkmark
attr type(<syntax>) function
type_function transform-function
type_function time
type_function string
type_function resolution
type_function percentage
type_function number
type_function length-percentage
type_function length
type_function integer
type_function image
type_function ident
type_function custom-ident
type_function color
type_function angle
top anchor-size
right anchor-size
margin-top anchor-size
margin-right anchor-size
margin-left anchor-size
margin-inline-start anchor-size
margin-inline-end anchor-size
margin-inline anchor-size
margin-bottom anchor-size
margin-block-start anchor-size
margin-block-end anchor-size
margin-block anchor-size
margin anchor-size
left anchor-size
inset-inline-start anchor-size
inset-inline-end anchor-size
inset-inline anchor-size
inset-block-start anchor-size
inset-block-end anchor-size
inset-block anchor-size
inset anchor-size
bottom anchor-size
anchor-size Valid in inset and margin property values.
2024year
324 properties
properties text-box-trim
text-box-trim trim-start
text-box-trim trim-end
text-box-trim trim-both
text-box-trim none
properties text-box-edge
text-box-edge text
text-box-edge ideographic-ink
text-box-edge ideographic
text-box-edge ex
text-box-edge cap
text-box-edge auto
properties text-box
text-box trim-start
text-box trim-end
text-box trim-both
text-box text
text-box normal
text-box none
text-box ideographic-ink
text-box ideographic
text-box ex
text-box cap
text-box auto
properties ruby-overhang
ruby-overhang none
ruby-overhang auto
background-clip border-area
types text-edge
text-edge text
text-edge ex
text-edge cap
text-edge alphabetic
page top-right-corner
page top-right
page top-left-corner
page top-left
page top-center
page right-top
page right-middle
page right-bottom
page left-top
page left-middle
page left-bottom
page bottom-right-corner
page bottom-right
page bottom-left-corner
page bottom-left
page bottom-center
font-variant-emoji unicode
font-variant-emoji text
font-variant-emoji normal
font-variant-emoji emoji
properties anchor-scope
anchor-scope none
anchor-scope all
selectors details-content
position-try-fallbacks span-self-y-start
position-try-fallbacks span-self-y-end
position-try-fallbacks span-self-x-start
position-try-fallbacks span-self-x-end
position-try-fallbacks self-y-start
position-try-fallbacks self-y-end
position-try-fallbacks self-x-start
position-try-fallbacks self-x-end
position-try span-self-y-start
position-try span-self-y-end
position-try span-self-x-start
position-try span-self-x-end
position-try self-y-start
position-try self-y-end
position-try self-x-start
position-try self-x-end
position-area y-start
position-area y-end
position-area x-start
position-area x-end
position-area top
position-area span-self-y-start
position-area span-self-y-end
position-area span-self-x-start
position-area span-self-x-end
position-area span-all
position-area self-y-start
position-area self-y-end
position-area self-x-start
position-area self-x-end
position-area self-start
position-area self-inline-start
position-area self-inline-end
position-area self-end
position-area self-block-start
position-area self-block-end
position-area right
position-area left
position-area inline-start
position-area inline-end
position-area end
position-area bottom
position-area block-start
position-area block-end
text-emphasis-position auto
text-wrap-style pretty
justify-self Supported in Block Layout
justify-items Supported in Block Layout
Specification: 1 2
๐ Browser Support
position-try-fallbacks y-start
position-try-fallbacks y-end
position-try-fallbacks x-start
position-try-fallbacks x-end
position-try-fallbacks top
position-try-fallbacks start
position-try-fallbacks span-y-start
position-try-fallbacks span-y-end
position-try-fallbacks span-x-start
position-try-fallbacks span-x-end
position-try-fallbacks span-top
position-try-fallbacks span-start
position-try-fallbacks span-self-start
position-try-fallbacks span-self-inline-start
position-try-fallbacks span-self-inline-end
position-try-fallbacks span-self-end
position-try-fallbacks span-self-block-start
position-try-fallbacks span-self-block-end
position-try-fallbacks span-right
position-try-fallbacks span-left
position-try-fallbacks span-inline-start
position-try-fallbacks span-inline-end
position-try-fallbacks span-end
position-try-fallbacks span-bottom
position-try-fallbacks span-block-start
position-try-fallbacks span-block-end
position-try-fallbacks span-all
position-try-fallbacks self-start
position-try-fallbacks self-inline-start
position-try-fallbacks self-inline-end
position-try-fallbacks self-end
position-try-fallbacks self-block-start
position-try-fallbacks self-block-end
position-try-fallbacks right
position-try-fallbacks left
position-try-fallbacks inline-start
position-try-fallbacks inline-end
position-try-fallbacks end
position-try-fallbacks center
position-try-fallbacks bottom
position-try-fallbacks block-start
position-try-fallbacks block-end
position-try y-start
position-try y-end
position-try x-start
position-try x-end
position-try top
position-try start
position-try span-y-start
position-try span-y-end
position-try span-x-start
position-try span-x-end
position-try span-top
position-try span-start
position-try span-self-start
position-try span-self-inline-start
position-try span-self-inline-end
position-try span-self-end
position-try span-self-block-start
position-try span-self-block-end
position-try span-right
position-try span-left
position-try span-inline-start
position-try span-inline-end
position-try span-end
position-try span-bottom
position-try span-block-start
position-try span-block-end
position-try span-all
position-try self-start
position-try self-inline-start
position-try self-inline-end
position-try self-end
position-try self-block-start
position-try self-block-end
position-try right
position-try left
position-try inline-start
position-try inline-end
position-try end
position-try center
position-try bottom
position-try block-start
position-try block-end
properties position-area
position-area start
position-area span-y-start
position-area span-y-end
position-area span-x-start
position-area span-x-end
position-area span-top
position-area span-start
position-area span-self-start
position-area span-self-inline-start
position-area span-self-inline-end
position-area span-self-end
position-area span-self-block-start
position-area span-self-block-end
position-area span-right
position-area span-left
position-area span-inline-start
position-area span-inline-end
position-area span-end
position-area span-bottom
position-area span-block-start
position-area span-block-end
position-area none
position-area center
properties interpolate-size
interpolate-size numeric-only
interpolate-size allow-keywords
container-type Applies style and size containment, but no layout containment.
types calc-size
offset-path margin-box
properties position-anchor
properties position-try-fallbacks
position-try-fallbacks position-area
position-try-fallbacks none
position-try-fallbacks flip-start
position-try-fallbacks flip-inline
position-try-fallbacks flip-block
position-area position-area resolves margin: auto and inset: auto to 0
at-rules view-transition
at-rules position-try
width anchor-size
properties view-transition-class
view-transition-class none
top anchor
right anchor
properties position-visibility
position-visibility no-overflow
position-visibility anchors-visible
position-visibility always
properties position-try-order
position-try-order normal
position-try-order most-width
position-try-order most-inline-size
position-try-order most-height
position-try-order most-block-size
properties position-try
position-try none
position-try flip-start
position-try flip-inline
position-try flip-block
position-anchor auto
place-self anchor-center
place-items anchor-center
min-width anchor-size
min-inline-size anchor-size
min-height anchor-size
min-block-size anchor-size
max-width anchor-size
max-inline-size anchor-size
max-height anchor-size
max-block-size anchor-size
left anchor
justify-self anchor-center
justify-items anchor-center
inset-inline-start anchor
inset-inline-end anchor
inset-inline anchor
inset-block-start anchor
inset-block-end anchor
inset-block anchor
inset anchor
inline-size anchor-size
height anchor-size
bottom anchor
block-size anchor-size
properties anchor-name
anchor-name none
align-self anchor-center
align-items anchor-center
selectors active-view-transition-type
selectors active-view-transition
hwb Relative HWB colors
hsl Relative HSL colors
types anchor-size
types anchor
properties font-variant-emoji
display-mode picture-in-picture
white-space-collapse preserve-spaces
white-space preserve-spaces
properties text-wrap-style
text-wrap-style stable
text-wrap-style balance
text-wrap-style auto
properties text-spacing-trim
text-spacing-trim trim-start
text-spacing-trim space-first
text-spacing-trim space-all
text-spacing-trim normal
properties field-sizing
field-sizing fixed
field-sizing content
first-line Support on SVG <text> element
first-letter Support on SVG <text> element
properties text-wrap-mode
text-wrap-mode wrap
text-wrap-mode nowrap
align-content Supported in Multi-column Layout
Specification: 1 2
๐ Browser Support
align-content Supported in Block Layout
selectors state
place-self Supported for absolutely-positioned boxes
justify-self Supported for absolutely-positioned boxes
color-interpolation linearGradient
align-self Supported for absolutely-positioned boxes
rgb Relative RGB colors
oklch Relative Oklch colors
text-decoration-line spelling-error
text-decoration-line grammar-error
text-decoration spelling-error
text-decoration grammar-error
font-palette palette-mix()
font-palette Animation of font-palette by computed value
selectors spelling-error
selectors grammar-error
hwb Mix <percentage> and <number> in parameters
hsl Mix <percentage> and <number> in parameters
2023year
161 properties
text-wrap stable
text-wrap auto
shape-outside xywh
shape-outside rect
writing-mode Vertically-oriented form controls
backdrop Backdrop elements inherit their values from its originating element
color light-dark
word-break auto-phrase
lch Relative LCH colors
color Relative color() syntax
basic-shape xywh
basic-shape rect
attr fallback
attr declaration-value
at-rules scope
length rcap
properties font-synthesis-position
font-synthesis-position none
font-synthesis-position auto
font-synthesis position
round Mix <percentage> with <length> and <number> parameters
rem Mix <percentage> with <length> and <number> parameters
mod Mix <percentage> with <length> and <number> parameters
font-size-adjust from-font
at-rules starting-style
properties transition-behavior
transition-behavior Transitions display property when set to allow-discrete
transition-behavior Transitions content-visibility property when set to allow-discrete
transition-behavior normal
transition-behavior allow-discrete
transition transition-behavior
text-wrap pretty
properties overlay
overlay none
overlay auto
display Transitionable when setting transition-behavior: allow-discrete
content-visibility Transitionable when setting transition-behavior: allow-discrete
contain-intrinsic-size auto none value
Specification: 1 2
๐ Browser Support
selectors nesting
properties timeline-scope
timeline-scope none
timeline-scope all
offset-position normal
offset-path view-box
offset-path url
offset-path stroke-box
offset-path padding-box
offset-path fill-box
offset-path content-box
offset-path border-box
offset-path <basic-shape>
offset normal
display @keyframe animatable
content-visibility @keyframe animatable
ray size
ray position
keyframes Named timeline range keyframe selectors
view-timeline-name none
properties view-timeline-inset
view-timeline-inset auto
view-timeline-axis y
view-timeline-axis x
view-timeline-axis inline
view-timeline-axis block
view-timeline none
scroll-timeline-name none
scroll-timeline-axis y
scroll-timeline-axis x
scroll-timeline-axis inline
scroll-timeline-axis block
scroll-timeline none
animation-timeline none
animation-timeline auto
properties animation-range-start
animation-range-start normal
properties animation-range-end
animation-range-end normal
properties animation-range
animation-range normal
Specification: 1 2
๐ Browser Support
animation-duration auto
animation animation-timeline included in shorthand
import supports
properties view-timeline-axis
properties view-timeline
animation-timeline view
properties white-space-collapse
white-space-collapse preserve-breaks
white-space-collapse preserve
white-space-collapse collapse
white-space-collapse break-spaces
white-space wrap
white-space Accepts shorthand values
Specification: 1 2
๐ Browser Support
white-space preserve-breaks
white-space preserve
white-space collapse
properties text-wrap
text-wrap wrap
text-wrap nowrap
text-wrap balance
selectors popover-open
selectors closed
backdrop popover
direction Control direction of vertical range sliders, meters, and progress bars
media scripting
media prefers-reduced-transparency
rgb Mix <percentage> and <number> in parameters
overflow-inline overlay
overflow-block overlay
easing-function linear-function
hyphens Hyphenation dictionary for Slovak (sk, sk-*)
hyphens Hyphenation dictionary for Modern Greek (el, el-*)
hyphens Hyphenation dictionary for Latvian (lv, lv-*)
hyphens Hyphenation dictionary for Georgian (ka, ka-*)
hyphens Hyphenation dictionary for Ethiopic script (mul-ethi, mul-ethi-*)
hyphens Hyphenation dictionary for Ahmaric (am, am-*)
hyphens Hyphenation dictionary for Albanian (sq, sq-*)
properties margin-trim
margin-trim none
margin-trim inline-start
margin-trim inline-end
margin-trim inline
margin-trim block-start
margin-trim block-end
margin-trim block
oklab Relative Oklab colors
lab Relative Lab colors
calc Color component support
properties view-timeline-name
properties scroll-timeline-name
properties scroll-timeline-axis
properties scroll-timeline
container Style queries for custom properties
properties view-transition-name
view-transition-name none
properties baseline-source
baseline-source last
baseline-source first
baseline-source auto
length rlh
length ric
length rex
length rch
properties animation-timeline
animation-timeline scroll
text-transform math-auto
properties math-shift
math-shift normal
math-shift compact
properties math-depth
math-depth auto-add
properties hyphenate-limit-chars
hyphenate-limit-chars auto
font-size math
font-family math
display math
selectors view-transition-old
selectors view-transition-new
selectors view-transition-image-pair
selectors view-transition-group
selectors view-transition
length lh
2022year
152 properties
repeating-radial-gradient Interpolation color space
repeating-radial-gradient Hue interpolation method
repeating-linear-gradient Interpolation color space
repeating-linear-gradient Hue interpolation method
repeating-conic-gradient Interpolation color space
repeating-conic-gradient Hue interpolation method
radial-gradient Interpolation color space
radial-gradient Hue interpolation method
linear-gradient Interpolation color space
linear-gradient Hue interpolation method
conic-gradient Interpolation color space
conic-gradient Hue interpolation method
oklch Mix <percentage> and <number> in parameters
oklab Mix <percentage> and <number> in parameters
lch Mix <percentage> and <number> in parameters
lab Mix <percentage> and <number> in parameters
color color-mix
src Drop invalid item (not src string)
src tech(keyword)
supports font-tech
supports font-format
forced-color-adjust preserve-parent-color
prefers-color-scheme respects-inherited-scheme
text-align-last match-parent
properties offset-position
offset-position top
offset-position right
offset-position left
offset-position center
offset-position bottom
offset-position auto
offset-path ray
offset view-box
offset top
offset stroke-box
offset right
offset padding-box
offset margin-box
offset left
offset fill-box
offset content-box
offset center
offset bottom
offset border-box
offset auto
container normal
properties animation-composition
animation-composition replace
animation-composition add
animation-composition accumulate
types ray
display-mode window-controls-overlay
at-rules container
properties container-type
container-type size
container-type normal
container-type inline-size
properties container-name
container-name none
properties container
container size
container scroll-state
container none
container inline-size
selection text-decoration
selectors highlight
length Container query length units cqw, cqh, cqi, cqb, cqmin, cqmax
overflow-clip-margin padding-box
overflow-clip-margin content-box
overflow-clip-margin border-box
properties object-view-box
object-view-box none
system-color AccentColor and AccentColorText
Specification: 1 2
๐ Browser Support
selectors modal
media update
media Range syntax from Media Queries Level 4
contain inline-size
multicol_context avoid
multicol_context avoid
system-color marktext
system-color mark
system-color buttonborder
at-rules font-palette-values
font-palette-values override-colors
font-palette-values font-family
font-palette-values base-palette
properties font-palette
font-palette normal
font-palette light
font-palette dark
selectors volume-locked
selectors stalled
selectors seeking
selectors playing
selectors paused
selectors muted
selectors has
selectors buffering
types tan
types sqrt
types sin
types sign
types round
types rem
types pow
types mod
types log
length svb, svh, svi, svmax, svmin, svw units
length lvb, lvh, lvi, lvmax, lvmin, lvw units
length dvb, dvh, dvi, dvmax, dvmin, dvw units
length vi
length vb
types hypot
types exp
types cos
color oklch
color oklab
calc-keyword pi
calc-keyword e
types atan2
types atan
types asin
types acos
types abs
properties hyphenate-character
media device-posture
types calc-keyword
calc-keyword infinity
calc-keyword NaN
at-rules layer
import layer
properties print-color-adjust
length ic
length cap
global_keywords revert-layer
media video-dynamic-range
font-face OpenType COLRv1 rendering
contain-intrinsic-width none
contain-intrinsic-size none
contain-intrinsic-inline-size none
contain-intrinsic-height none
contain-intrinsic-block-size none
counter-reset reversed
properties font-synthesis-weight
font-synthesis-weight none
font-synthesis-weight auto
properties font-synthesis-style
font-synthesis-style none
font-synthesis-style auto
properties font-synthesis-small-caps
font-synthesis-small-caps none
font-synthesis-small-caps auto
2021year
63 properties
properties contain-intrinsic-width
properties contain-intrinsic-inline-size
properties contain-intrinsic-height
properties contain-intrinsic-block-size
image-rendering smooth
perspective none
properties scrollbar-gutter
scrollbar-gutter stable
scrollbar-gutter auto
flex-basis fit-content
flex fit-content
env keyboard-inset-width
env keyboard-inset-top
env keyboard-inset-right
env keyboard-inset-left
env keyboard-inset-height
env keyboard-inset-bottom
text-indent hanging
text-indent each-line
color lch
color lab
color hwb
color color
color Mix <percentage> and <number> in parameters
font-size-adjust two-values
properties accent-color
accent-color transparent
accent-color currentColor
accent-color auto
width fit-content()
min-width fit-content()
min-inline-size fit-content()
min-height fit-content()
min-block-size fit-content()
max-width fit-content()
max-inline-size fit-content()
max-height fit-content()
max-block-size fit-content()
inline-size fit-content()
height fit-content()
content content: none for elements
block-size fit-content()
env titlebar-area-y
env titlebar-area-x
env titlebar-area-width
env titlebar-area-height
font-face size-adjust
content image-set
background-image image-set
image image-set
media prefers-contrast
properties math-style
math-style normal
math-style compact
ruby-position alternate
selectors user-valid
selectors user-invalid
properties overflow-clip-margin
first-letter Support for the Dutch digraph IJ
selectors target-text
selectors autofill
properties aspect-ratio
aspect-ratio auto
2020year
84 properties
font-face line-gap-override
font-face descent-override
font-face ascent-override
hyphens Hyphenation dictionary for Turkmen (tk, tk-*)
hyphens Hyphenation dictionary for Telugu (te, te-*)
hyphens Hyphenation dictionary for Tamil (ta, ta-*)
hyphens Hyphenation dictionary for Punjabi/Panjabi (pa, pa-*)
hyphens Hyphenation dictionary for Oriya (or, or-*)
hyphens Hyphenation dictionary for Old Slavonic (cu, cu-*)
hyphens Hyphenation dictionary for Marathi (mr, mr-*)
hyphens Hyphenation dictionary for Malayalam (ml, ml-*)
hyphens Hyphenation dictionary for Kannada (kn, kn-*)
hyphens Hyphenation dictionary for Irish (ga, ga-*)
hyphens Hyphenation dictionary for Hindi (hi, hi-*)
hyphens Hyphenation dictionary for Gujarati (gu, gu-*)
hyphens Hyphenation dictionary for Ethiopic script (und-ethi, und-ethi-*)
hyphens Hyphenation dictionary for Mongolian (Cyrillic) (mn-cyrl, mn-cyrl-*)
hyphens Hyphenation dictionary for Bengali (bn, bn-*)
hyphens Hyphenation dictionary for Belarusian (be, be-*)
hyphens Hyphenation dictionary for Basque (be, be-*)
hyphens Hyphenation dictionary for Assamese (as, as-*)
hyphens Hyphenation dictionary for Armenian (hy, hy-*)
counter-reset Resets counter on current element (not sibling elements).
selectors focus-visible
overflow-y clip
overflow-x clip
overflow-inline clip
overflow-block clip
overflow clip
overflow clip
where Support for forgiving selector list
is Support for forgiving selector list
at-rules property
property syntax
property initial-value
property inherits
page page-orientation
media prefers-reduced-data
properties content-visibility
content-visibility visible
content-visibility hidden
content-visibility auto
marker Animation and transition support
ruby-position inter-character
properties appearance
selectors where
selectors is
ratio Accepts a single <number> as a value.
grid-template-rows masonry
grid-template-columns masonry
size jis-b5
size jis-b4
properties contain-intrinsic-size
appearance auto
selectors xr-overlay
text-decoration-skip-ink all
media dynamic-range
transform-box stroke-box
transform-box content-box
font-family ui-serif
font-family ui-sans-serif
font-family ui-rounded
font-family ui-monospace
selectors picture-in-picture
text-underline-offset percentage
text-decoration-thickness percentage
Specification: 1 2
๐ Browser Support
media forced-colors
forced-color-adjust none
forced-color-adjust auto
properties translate
translate none
properties scale
scale none
properties rotate
rotate x, y, or z axis name plus angle value
rotate none
offset-path none
properties offset-anchor
offset-anchor top
offset-anchor right
offset-anchor left
offset-anchor center
offset-anchor bottom
offset-anchor auto
2019year
159 properties
properties overscroll-behavior-inline
properties overscroll-behavior-block
grid-template-rows subgrid
grid-template-columns subgrid
types clamp
text-decoration text-decoration-thickness included in shorthand
Specification: 1 2
๐ Browser Support
text-decoration from-font
text-decoration auto
shape-image-threshold percentages
Specification: 1 2
๐ Browser Support
quotes auto
opacity percentages
font-size xxx-large
display Multi-keyword values
properties color-scheme
color-scheme only
color-scheme normal
color-scheme light
color-scheme dark
clip-path path
path clip-path
overscroll-behavior-inline none
overscroll-behavior-inline contain
overscroll-behavior-inline auto
overscroll-behavior-block none
overscroll-behavior-block contain
overscroll-behavior-block auto
content Alternative text after /
supports selector
properties overflow-inline
overflow-inline visible
overflow-inline scroll
overflow-inline hidden
overflow-inline auto
properties overflow-block
overflow-block visible
overflow-block scroll
overflow-block hidden
overflow-block auto
line-break anywhere
properties backdrop-filter
scroll-padding-top auto
scroll-padding-right auto
scroll-padding-left auto
scroll-padding-bottom auto
line-clamp none
properties counter-set
counter-set none
counter-set list-item
white-space break-spaces
properties scroll-snap-stop
scroll-snap-stop normal
scroll-snap-stop always
media prefers-color-scheme
prefers-color-scheme no-preference
text-underline-position from-font
properties text-underline-offset
text-underline-offset auto
properties text-decoration-thickness
text-decoration-thickness from-font
text-decoration-thickness auto
media overflow-inline
media overflow-block
properties padding-inline
properties padding-block
properties margin-inline
margin-inline auto
properties margin-block
margin-block auto
properties inset
inset auto
grid-template-rows animation
grid-template-columns animation
flex-basis min-content
flex-basis max-content
flex min-content
flex max-content
properties border-start-start-radius
properties border-start-end-radius
properties border-inline-width
border-inline-width thin
border-inline-width thick
border-inline-width medium
properties border-inline-style
border-inline-style solid
border-inline-style ridge
border-inline-style outset
border-inline-style none
border-inline-style inset
border-inline-style hidden
border-inline-style groove
border-inline-style double
border-inline-style dotted
border-inline-style dashed
properties border-inline-color
border-inline-color transparent
border-inline-color currentColor
properties border-inline
border-inline transparent
border-inline thin
border-inline thick
border-inline solid
border-inline ridge
border-inline outset
border-inline none
border-inline medium
border-inline inset
border-inline hidden
border-inline groove
border-inline double
border-inline dotted
border-inline dashed
border-inline currentColor
properties border-end-start-radius
properties border-end-end-radius
properties border-block-width
border-block-width thin
border-block-width thick
border-block-width medium
properties border-block-style
border-block-style solid
border-block-style ridge
border-block-style outset
border-block-style none
border-block-style inset
border-block-style hidden
border-block-style groove
border-block-style double
border-block-style dotted
border-block-style dashed
properties border-block-color
border-block-color transparent
border-block-color currentColor
properties border-block
border-block transparent
border-block thin
border-block thick
border-block solid
border-block ridge
border-block outset
border-block none
border-block medium
border-block inset
border-block hidden
border-block groove
border-block double
border-block dotted
border-block dashed
border-block currentColor
attribute Case-sensitive modifier (s)
selectors part
transition-timing-function jump
Specification: 1 2 3 4
๐ Browser Support
overflow-wrap anywhere
multicol_context always
break-before always
multicol_context always
break-after always
animation-timing-function jump
Specification: 1 2 3 4
๐ Browser Support
conic-gradient doubleposition
steps jump
Specification: 1 2 3 4
๐ Browser Support
2018year
104 properties
media or syntax from Media Queries Level 4
text-transform full-size-kana
properties scrollbar-width
scrollbar-width thin
scrollbar-width none
scrollbar-width auto
properties scrollbar-color
scrollbar-color auto
text-underline-position right
text-underline-position left
list-item legend-support
repeating-radial-gradient doubleposition
repeating-linear-gradient doubleposition
radial-gradient doubleposition
linear-gradient doubleposition
media scan
row-gap Supported in Flex Layout
resize inline
resize block
flex_context safe and unsafe
Specification: 1 2
๐ Browser Support
properties inset-inline-start
properties inset-inline-end
properties inset-inline
properties inset-block-start
properties inset-block-end
properties inset-block
gap Supported in Flex Layout
column-gap Supported in Flex Layout
Specification: 1 2 3
๐ Browser Support
flex_context safe and unsafe
Specification: 1 2
๐ Browser Support
flex_context safe and unsafe
Specification: 1 2
๐ Browser Support
flex_context safe and unsafe
Specification: 1 2
๐ Browser Support
font-face font-variation-settings
properties scroll-padding-top
properties scroll-padding-right
properties scroll-padding-left
properties scroll-padding-inline-start
scroll-padding-inline-start auto
properties scroll-padding-inline-end
scroll-padding-inline-end auto
properties scroll-padding-inline
scroll-padding-inline auto
properties scroll-padding-bottom
properties scroll-padding-block-start
scroll-padding-block-start auto
properties scroll-padding-block-end
scroll-padding-block-end auto
properties scroll-padding-block
scroll-padding-block auto
properties scroll-padding
properties scroll-margin-top
properties scroll-margin-right
properties scroll-margin-left
properties scroll-margin-inline-start
properties scroll-margin-inline-end
properties scroll-margin-inline
properties scroll-margin-bottom
properties scroll-margin-block-start
properties scroll-margin-block-end
properties scroll-margin-block
properties scroll-margin
gradient repeating-conic-gradient
gradient conic-gradient
resolution x
properties overscroll-behavior-y
properties overscroll-behavior-x
properties overscroll-behavior
background top
background right
background padding-box
background left
background content-box
background center
background bottom
background border-box
at-rules document
overflow Multiple keyword syntax for overflow-x and overflow-y
Specification: 1 2
๐ Browser Support
flex-basis content
flex content
properties font-optical-sizing
font-optical-sizing none
font-optical-sizing auto
font-face OpenType CBDT and CBLC rendering
properties stroke-color
stroke-color transparent
stroke-color currentColor
properties speak-as
speak-as spell-out
speak-as normal
speak-as no-punctuation
speak-as literal-punctuation
speak-as digits
selectors marker
types min
types max
types env
media Media query value support
Specification: 1 2
๐ Browser Support
media calc
contents Specific behavior of unusual elements when display: contents is applied to them
any-link :any-link privacy: selector does not match <link> elements
image paint
text-decoration-skip-ink none
text-decoration-skip-ink auto
offset-path path
properties text-decoration-skip-ink
2017year
190 properties
overscroll-behavior-y none
overscroll-behavior-y contain
overscroll-behavior-y auto
overscroll-behavior-x none
overscroll-behavior-x contain
overscroll-behavior-x auto
overscroll-behavior none
overscroll-behavior contain
overscroll-behavior auto
image element
row-gap Supported in Grid Layout
gap Supported in Multi-column Layout
gap Supported in Grid Layout
font-style oblique-angle
font-stretch percentage
multicol_context <percentage> values
multicol_context calc() values
column-gap Supported in Grid Layout
Specification: 1 2 3
๐ Browser Support
src format('*-variations')
scroll-snap-type y
scroll-snap-type x
scroll-snap-type inline
scroll-snap-type both
scroll-snap-type block
properties scroll-snap-align
scroll-snap-align start
scroll-snap-align none
scroll-snap-align end
scroll-snap-align center
scroll-padding auto
properties paint-order
font-weight number
properties font-variation-settings
font-variation-settings normal
env safe-area-inset-top
env safe-area-inset-right
env safe-area-inset-left
env safe-area-inset-bottom
offset none
properties transform-box
transform-box view-box
transform-box fill-box
transform-box border-box
text-justify none
text-justify inter-word
text-justify inter-character
text-justify auto
float inline-start
float inline-end
clear inline-start
clear inline-end
selectors -moz-last-node
selectors -moz-first-node
font-face font-display
clip-path view-box
clip-path padding-box
Specification: 1 2
๐ Browser Support
clip-path margin-box
Specification: 1 2
๐ Browser Support
clip-path content-box
Specification: 1 2
๐ Browser Support
clip-path border-box
Specification: 1 2
๐ Browser Support
place-content Supported in Grid Layout
properties mask-size
properties mask-repeat
properties mask-position
properties mask-origin
mask-origin view-box
mask-origin stroke-box
mask-origin padding-box
mask-origin fill-box
mask-origin content-box
mask-origin border-box
properties mask-mode
mask-mode match-source
mask-mode luminance
mask-mode alpha
properties mask-composite
mask-composite subtract
mask-composite intersect
mask-composite exclude
mask-composite add
properties mask-clip
mask-clip view-box
mask-clip stroke-box
mask-clip padding-box
mask-clip no-clip
mask-clip fill-box
mask-clip content-box
mask-clip border-box
properties mask
display flow-root
media prefers-reduced-motion
font-synthesis small-caps
properties text-decoration-skip
text-decoration wavy
text-decoration transparent
text-decoration solid
text-decoration double
text-decoration dotted
text-decoration dashed
text-decoration currentColor
min-inline-size min-content
min-inline-size max-content
min-inline-size fit-content
min-block-size min-content
min-block-size max-content
min-block-size fit-content
max-inline-size min-content
max-inline-size max-content
max-inline-size fit-content
grid-template-rows repeat
grid-template-columns repeat
properties caret-color
caret-color transparent
caret-color currentColor
caret-color auto
block-size fit-content
flex_context space-evenly
grid-template-rows none
grid-template-rows minmax
grid-template-rows min-content
grid-template-rows max-content
grid-template-rows fit-content
grid-template-rows auto
grid-template-columns none
grid-template-columns minmax
grid-template-columns min-content
grid-template-columns max-content
grid-template-columns fit-content
grid-template-columns auto
properties grid-template-areas
grid-template-areas none
properties grid-template
grid-template none
properties grid-row-start
grid-row-start auto
properties grid-row-end
grid-row-end auto
properties grid-row
grid-row auto
properties grid-column-start
grid-column-start auto
properties grid-column-end
grid-column-end auto
properties grid-column
grid-column auto
grid-auto-rows min-content
grid-auto-rows max-content
grid-auto-rows auto
properties grid-auto-flow
grid-auto-flow row
grid-auto-flow dense
grid-auto-flow column
grid-auto-columns min-content
grid-auto-columns max-content
grid-auto-columns auto
properties grid-area
grid-area auto
properties grid
grid none
properties gap
gap normal
grid_context <percentage> values
grid_context calc() values
flex_context last baseline
flex_context first baseline
grid_context start and end
Specification: 1 2
๐ Browser Support
flex_context last baseline
flex_context first baseline
flex_context space-evenly
flex_context last baseline
flex_context first baseline
only-child Matches elements with no parent
nth-last-child Matches elements with no parent
nth-child Matches elements with no parent
last-child Matches elements with no parent
selectors focus-within
first-child Matches elements with no parent
rgb Space-separated rgb() parameters
rgb Float values in parameters
rgb Alpha parameter
hsl Space-separated parameters
hsl Alpha parameter
properties overflow-anchor
overflow-anchor none
overflow-anchor auto
properties offset-rotate
font-family system-ui
path offset-path
clip-path stroke-box
clip-path fill-box
selectors placeholder
2016year
106 properties
max-block-size min-content
max-block-size max-content
max-block-size fit-content
inline-size min-content
inline-size max-content
inline-size fit-content
block-size min-content
block-size max-content
touch-action pan-up
Specification: 1 2
๐ Browser Support
touch-action pan-right
Specification: 1 2
๐ Browser Support
touch-action pan-left
Specification: 1 2
๐ Browser Support
touch-action pan-down
Specification: 1 2
๐ Browser Support
properties offset-path
properties offset-distance
properties offset
font-face font-stretch
text-size-adjust none
text-size-adjust auto
selectors host-context
clip-path Is animatable
background-clip text
selectors dir
length Q
media color-gamut
color-gamut srgb
color-gamut rec2020
color-gamut p3
properties -webkit-text-zoom
selectors hostfunction
selectors host
selectors defined
ry auto
rx auto
properties color-adjust
color-adjust exact
color-adjust economy
justify-content Supported in Grid Layout
Specification: 1 2
๐ Browser Support
align-items Supported in Grid Layout
Specification: 1 2
๐ Browser Support
align-content Supported in Grid Layout
Specification: 1 2
๐ Browser Support
properties d
d none
properties contain
contain style
contain strict
contain size
contain paint
contain none
contain layout
contain content
basic-shape path
path d
calc nested
break-inside avoid-page
break-inside avoid-column
break-inside avoid
break-inside auto
break-before verso
break-before right
break-before recto
break-before page
break-before left
break-before column
break-before avoid-page
break-before avoid-column
break-before avoid
break-before auto
break-after verso
break-after right
break-after recto
break-after page
break-after left
break-after column
break-after avoid-page
break-after avoid-column
break-after avoid
break-after auto
selectors slotted
media inverted-colors
font-face OpenType SBIX rendering
mix-blend-mode plus-lighter
hyphens Hyphenation dictionary for Czech (cs, cs-*)
image filter
global_keywords revert
rgb_hexadecimal_notation RGBA hexadecimal notation (#RRGGBBAA, #RGBA)
overflow overlay
properties place-self
place-self Supported in Grid Layout
place-self Supported in Flex Layout
properties place-items
place-items Supported in Grid Layout
place-items Supported in Flex Layout
justify-self stretch
justify-self right
justify-self normal
justify-self left
justify-self auto
justify-items Supported in Grid Layout
flex_context start and end
Specification: 1 2
๐ Browser Support
flex_context start and end
Specification: 1 2
๐ Browser Support
flex_context start and end
Specification: 1 2
๐ Browser Support
flex_context start and end
Specification: 1 2
๐ Browser Support
unicode-bidi plaintext
unicode-bidi isolate-override
unicode-bidi isolate
text-combine-upright none
text-combine-upright all
2015year
260 properties
writing-mode sideways-rl
writing-mode sideways-lr
font font-width keyword values in shorthand
display-mode fullscreen
properties row-gap
row-gap normal
caption-side top and bottom are relative to the writing-mode value
width min-content
width max-content
width fit-content
offset-rotate reverse
offset-rotate auto
min-width min-content
min-width max-content
min-width fit-content
min-height min-content
min-height max-content
min-height fit-content
max-width min-content
max-width max-content
max-width fit-content
max-height min-content
max-height max-content
max-height fit-content
height min-content
height max-content
height fit-content
properties text-orientation
text-orientation mixed
properties padding-inline-start
properties padding-inline-end
properties padding-block-start
properties padding-block-end
properties min-inline-size
min-inline-size auto
properties min-block-size
min-block-size auto
properties max-inline-size
max-inline-size none
properties max-block-size
max-block-size none
properties margin-inline-start
margin-inline-start auto
properties margin-inline-end
margin-inline-end auto
properties margin-block-start
margin-block-start auto
properties margin-block-end
margin-block-end auto
inset-inline-start auto
inset-inline-end auto
inset-inline auto
inset-block-start auto
inset-block-end auto
inset-block auto
properties inline-size
properties border-inline-start-width
border-inline-start-width thin
border-inline-start-width thick
border-inline-start-width medium
properties border-inline-start-style
border-inline-start-style solid
border-inline-start-style ridge
border-inline-start-style outset
border-inline-start-style none
border-inline-start-style inset
border-inline-start-style hidden
border-inline-start-style groove
border-inline-start-style double
border-inline-start-style dotted
border-inline-start-style dashed
properties border-inline-start-color
border-inline-start-color transparent
border-inline-start-color currentColor
properties border-inline-start
border-inline-start transparent
border-inline-start thin
border-inline-start thick
border-inline-start solid
border-inline-start ridge
border-inline-start outset
border-inline-start none
border-inline-start medium
border-inline-start inset
border-inline-start hidden
border-inline-start groove
border-inline-start double
border-inline-start dotted
border-inline-start dashed
border-inline-start currentColor
properties border-inline-end-width
border-inline-end-width thin
border-inline-end-width thick
border-inline-end-width medium
properties border-inline-end-style
border-inline-end-style solid
border-inline-end-style ridge
border-inline-end-style outset
border-inline-end-style none
border-inline-end-style inset
border-inline-end-style hidden
border-inline-end-style groove
border-inline-end-style double
border-inline-end-style dotted
border-inline-end-style dashed
properties border-inline-end-color
border-inline-end-color transparent
border-inline-end-color currentColor
properties border-inline-end
border-inline-end transparent
border-inline-end thin
border-inline-end thick
border-inline-end solid
border-inline-end ridge
border-inline-end outset
border-inline-end none
border-inline-end medium
border-inline-end inset
border-inline-end hidden
border-inline-end groove
border-inline-end double
border-inline-end dotted
border-inline-end dashed
border-inline-end currentColor
properties border-block-start-width
border-block-start-width thin
border-block-start-width thick
border-block-start-width medium
properties border-block-start-style
border-block-start-style solid
border-block-start-style ridge
border-block-start-style outset
border-block-start-style none
border-block-start-style inset
border-block-start-style hidden
border-block-start-style groove
border-block-start-style double
border-block-start-style dotted
border-block-start-style dashed
properties border-block-start-color
border-block-start-color transparent
border-block-start-color currentColor
properties border-block-start
border-block-start transparent
border-block-start thin
border-block-start thick
border-block-start solid
border-block-start ridge
border-block-start outset
border-block-start none
border-block-start medium
border-block-start inset
border-block-start hidden
border-block-start groove
border-block-start double
border-block-start dotted
border-block-start dashed
border-block-start currentColor
properties border-block-end-width
border-block-end-width thin
border-block-end-width thick
border-block-end-width medium
properties border-block-end-style
border-block-end-style solid
border-block-end-style ridge
border-block-end-style outset
border-block-end-style none
border-block-end-style inset
border-block-end-style hidden
border-block-end-style groove
border-block-end-style double
border-block-end-style dotted
border-block-end-style dashed
properties border-block-end-color
border-block-end-color transparent
border-block-end-color currentColor
properties border-block-end
border-block-end transparent
border-block-end thin
border-block-end thick
border-block-end solid
border-block-end ridge
border-block-end outset
border-block-end none
border-block-end medium
border-block-end inset
border-block-end hidden
border-block-end groove
border-block-end double
border-block-end dotted
border-block-end dashed
border-block-end currentColor
properties block-size
properties place-content
place-content Supported in Flex Layout
mix-blend-mode plus-darker
flex_context stretch
flex_context left and right
Specification: 1 2
๐ Browser Support
properties initial-letter
initial-letter normal
height stretch
backdrop-filter none
properties alt
flex_context stretch
flex_context stretch
flex_context baseline
placeholder-shown Support on non-type="text" elements (such as type="number" or type="time")
Specification: 1 2
๐ Browser Support
nth-last-child of <selector> syntax
nth-child of <selector> syntax
not Selector list argument
lang wildcards
lang Comma-separated list of language codes as :lang(A, B)
attribute Case-insensitive modifier (i)
selectors any-link
-moz-orient inline
-moz-orient block
writing-mode vertical-rl
writing-mode vertical-lr
writing-mode horizontal-tb
text-size-adjust percentages
overflow-y overflow-y applies to replaced elements.
overflow-x overflow-x applies to replaced elements.
overflow overflow applies to replaced elements.
paged_context avoid-page
scroll-snap-type none
list-style-type string
properties ry
properties rx
properties r
properties cy
properties cx
properties ruby-position
ruby-position under
ruby-position over
properties ruby-align
ruby-align start
ruby-align space-between
ruby-align space-around
ruby-align center
media display-mode
display-mode standalone
display-mode minimal-ui
display-mode browser
properties y
properties x
tab-size length
display contents
media pointer
media any-pointer
media any-hover
properties text-decoration-style
properties text-decoration-line
properties text-decoration-color
properties scroll-behavior
scroll-behavior smooth
scroll-behavior auto
list-style-type symbols
list-style symbols
properties filter
filter On SVG elements
2014year
176 properties
image-rendering pixelated
at-rules font-feature-values
font-feature-values swash
font-feature-values stylistic
font-feature-values styleset
font-feature-values ornaments
font-feature-values historical-forms
font-feature-values character-variant
font-feature-values annotation
font-face font-feature-settings
properties font-variant-position
font-variant-position super
font-variant-position sub
font-variant-position normal
properties font-variant-numeric
font-variant-numeric tabular-nums
font-variant-numeric stacked-fractions
font-variant-numeric slashed-zero
font-variant-numeric proportional-nums
font-variant-numeric ordinal
font-variant-numeric oldstyle-nums
font-variant-numeric normal
font-variant-numeric lining-nums
font-variant-numeric diagonal-fractions
properties font-variant-east-asian
font-variant-east-asian traditional
font-variant-east-asian simplified
font-variant-east-asian ruby
font-variant-east-asian proportional-width
font-variant-east-asian normal
font-variant-east-asian jis90
font-variant-east-asian jis83
font-variant-east-asian jis78
font-variant-east-asian jis04
font-variant-east-asian full-width
properties font-variant-caps
font-variant-caps unicase
font-variant-caps titling-caps
font-variant-caps small-caps
font-variant-caps petite-caps
font-variant-caps normal
font-variant-caps all-small-caps
font-variant-caps all-petite-caps
properties font-variant-alternates
font-variant-alternates swash
font-variant-alternates stylistic
font-variant-alternates styleset
font-variant-alternates ornaments
font-variant-alternates normal
font-variant-alternates historical-forms
font-variant-alternates character-variant()
font-variant-alternates annotation
font-variant super
font-variant sub
font-variant none
font-variant historical-forms
font-variant CSS Fonts Module Level 3 shorthand
properties font-synthesis
font-synthesis weight
font-synthesis style
font-synthesis none
Specification: 1 2 3 4
๐ Browser Support
properties font-language-override
indeterminate radio
at-rules counter-style
counter-style system
counter-style symbols
counter-style suffix
counter-style speak-as
counter-style range
counter-style prefix
counter-style pad
counter-style negative
counter-style fallback
counter-style additive-symbols
list-style-type tamil
list-style-type ethiopic-numeric
list-style-type disclosure-open
list-style-type disclosure-closed
media hover
text-emphasis-position right
text-emphasis-position left
position Table elements as sticky positioning containers
properties isolation
isolation isolate
isolation auto
position sticky
properties mix-blend-mode
mix-blend-mode On SVG elements
mix-blend-mode soft-light
mix-blend-mode screen
mix-blend-mode saturation
mix-blend-mode overlay
mix-blend-mode normal
mix-blend-mode multiply
mix-blend-mode luminosity
mix-blend-mode lighten
mix-blend-mode hue
mix-blend-mode hard-light
mix-blend-mode exclusion
mix-blend-mode difference
mix-blend-mode darken
mix-blend-mode color-dodge
mix-blend-mode color-burn
mix-blend-mode color
flex-grow <0 animate
properties shape-outside
shape-outside polygon
shape-outside padding-box
shape-outside none
shape-outside margin-box
shape-outside inset
shape-outside image
shape-outside gradient
shape-outside content-box
shape-outside circle
shape-outside border-box
properties shape-margin
properties shape-image-threshold
types basic-shape
basic-shape polygon
basic-shape inset
basic-shape ellipse
basic-shape circle
basic-shape animation
font-face OpenType SVG rendering
font-face OpenType COLRv0 rendering
hyphens Hyphenation dictionary for Polish (pl, pl-*)
properties custom-property
types var
font-face WOFF 2
properties will-change
will-change scroll-position
will-change contents
will-change auto
paint-order stroke
paint-order normal
paint-order markers
paint-order fill
properties background-blend-mode
types blend-mode
properties font-variant-ligatures
list-style-type trad-chinese-informal
list-style-type trad-chinese-formal
list-style-type simp-chinese-informal
list-style-type simp-chinese-formal
list-style-type korean-hanja-informal
list-style-type korean-hanja-formal
list-style-type korean-hangul-formal
list-style-type japanese-informal
list-style-type japanese-formal
list-style-type cjk-decimal
text-underline-position under
pointer-events bounding-box
properties font-kerning
font-kerning normal
font-kerning none
font-kerning auto
cursor grabbing
cursor grab
properties all
selectors -moz-color-swatch
global_keywords unset
properties object-position
object-position top
object-position right
object-position left
object-position center
object-position bottom
properties object-fit
object-fit scale-down
object-fit none
object-fit fill
object-fit cover
object-fit contain
backdrop dialog
selectors -webkit-slider-thumb
2013year
119 properties
text-decoration-line blink
properties image-orientation
image-orientation none
image-orientation from-image
properties touch-action
touch-action pinch-zoom
Specification: 1 2
๐ Browser Support
touch-action pan-y
Specification: 1 2
๐ Browser Support
touch-action pan-x
Specification: 1 2
๐ Browser Support
touch-action none
Specification: 1 2
๐ Browser Support
touch-action manipulation
Specification: 1 2
๐ Browser Support
properties text-justify
properties text-combine-upright
border-image-repeat space
selectors fullscreen
fullscreen Select all elements in the fullscreen stack
Specification: 1 2
๐ Browser Support
selectors backdrop
backdrop fullscreen
number Scientific notation
named-color rebeccapurple
min-height stretch
max-height stretch
word-spacing percentages
width stretch
properties text-emphasis-style
text-emphasis-style triangle
text-emphasis-style sesame
text-emphasis-style open
text-emphasis-style none
text-emphasis-style filled
text-emphasis-style double-circle
text-emphasis-style dot
text-emphasis-style circle
properties text-emphasis-position
text-emphasis-position under
text-emphasis-position over
properties text-emphasis-color
properties text-emphasis
text-decoration-skip none
text-decoration-skip auto
min-width stretch
max-width stretch
letter-spacing percentages
font-variant-ligatures normal
font-variant-ligatures none
font-variant-ligatures no-historical-ligatures
font-variant-ligatures no-discretionary-ligatures
font-variant-ligatures no-contextual
font-variant-ligatures no-common-ligatures
font-variant-ligatures historical-ligatures
font-variant-ligatures discretionary-ligatures
font-variant-ligatures contextual
font-variant-ligatures common-ligatures
properties box-decoration-break
box-decoration-break slice
box-decoration-break clone
properties -webkit-mask-source-type
properties -webkit-cursor-visibility
repeating-radial-gradient Interpolation Hints / Gradient Midpoints
repeating-linear-gradient Interpolation Hints / Gradient Midpoints
radial-gradient Interpolation Hints / Gradient Midpoints
linear-gradient Interpolation Hints / Gradient Midpoints
cursor zoom-out
cursor zoom-in
media color-index
properties flex-wrap
properties align-content
align-content normal
radial-gradient Gradients applied to pre-multiplied color space (prevents grays from appearing in gradients with transparency)
linear-gradient Gradients applied to pre-multiplied color space (prevents grays from appearing in gradients with transparency)
properties mask-image
properties buffered-rendering
buffered-rendering static
buffered-rendering dynamic
buffered-rendering auto
color-interpolation-filters sRGB
color-interpolation-filters linearRGB
selectors -moz-range-progress
selectors scope
scope Support in DOM API such as in querySelector() and querySelectorAll()
selectors -moz-range-track
selectors -moz-range-thumb
image-rendering crisp-edges
justify-items right
justify-items legacy
justify-items left
justify-items center
display inline-flex
display flex
properties align-items
align-items Supported in Flex Layout
Specification: 1 2
๐ Browser Support
content gradient
selectors cue
cue ::cue(<selector>)
selectors -webkit-slider-runnable-track
repeating-linear-gradient Unitless 0 for <angle>
linear-gradient Unitless 0 for <angle>
text-emphasis-color transparent
text-emphasis-color currentColor
text-emphasis triangle
text-emphasis transparent
text-emphasis sesame
text-emphasis open
text-emphasis none
text-emphasis filled
text-emphasis double-circle
text-emphasis dot
text-emphasis currentColor
text-emphasis circle
line-break strict
line-break loose
line-break auto
selectors -webkit-progress-value
selectors -webkit-progress-bar
keyframes Ignore !important declarations
text-transform full-width
properties mask-type
mask-type luminance
mask-type alpha
properties -webkit-app-region
2012year
166 properties
column-fill balance
column-fill auto
clip-path <basic-shape>
selectors past
selectors future
selectors -webkit-progress-inner-element
selectors -webkit-meter-inner-element
white-space On SVG elements
Specification: 1 2
๐ Browser Support
transition Gradients can be animated
properties scroll-snap-type
position Absolutely-positioned flex children
properties justify-self
justify-self Supported in Grid Layout
properties hyphens
properties grid-template-rows
properties grid-template-columns
properties grid-auto-rows
properties grid-auto-columns
properties forced-color-adjust
properties font-feature-settings
display inline-grid
display grid
properties column-span
column-gap Supported in Multi-column Layout
Specification: 1 2 3
๐ Browser Support
properties column-fill
properties column-count
clip-path On SVG elements
properties break-inside
break-inside Supported in Paged Media
Specification: 1 2 3
๐ Browser Support
break-inside Supported in Multi-column Layout
Specification: 1 2 3
๐ Browser Support
multicol_context avoid-column
properties break-before
break-before Supported in Paged Media
Specification: 1 2 3
๐ Browser Support
break-before Supported in Multi-column Layout
Specification: 1 2 3
๐ Browser Support
multicol_context column
multicol_context avoid-column
properties break-after
break-after Supported in Paged Media
Specification: 1 2 3
๐ Browser Support
break-after Supported in Multi-column Layout
Specification: 1 2 3
๐ Browser Support
multicol_context column
multicol_context avoid-column
align-self Supported in Grid Layout
Specification: 1 2
๐ Browser Support
selectors placeholder-shown
selectors file-selector-button
length vmin
types flex
at-rules supports
at-rules keyframes
width Is animatable
properties transition-timing-function
properties transition-property
properties transition-duration
properties transition-delay
properties transition
properties transform-style
properties transform-origin
properties transform
properties perspective-origin
properties perspective
properties order
properties justify-items
justify-items Supported in Flex Layout
properties justify-content
justify-content Supported in Flex Layout
Specification: 1 2
๐ Browser Support
properties flex-shrink
properties flex-grow
properties flex-flow
properties flex-direction
properties flex-basis
properties flex
properties backface-visibility
properties animation-timing-function
properties animation-play-state
properties animation-name
properties animation-iteration-count
properties animation-fill-mode
properties animation-duration
properties animation-direction
properties animation-delay
properties animation
properties align-self
align-self Supported in Flex Layout
Specification: 1 2
๐ Browser Support
resolution dppx
gradient repeating-radial-gradient
repeating-radial-gradient at
gradient repeating-linear-gradient
gradient radial-gradient
gradient linear-gradient
flex-basis auto
properties -webkit-column-progression
text-transform Greek accented letters
border-image-repeat round
properties tab-size
min-width auto
min-height auto
justify-content right
justify-content normal
justify-content left
flex-wrap wrap-reverse
flex-wrap wrap
flex-wrap nowrap
flex-flow wrap-reverse
flex-flow wrap
flex-flow row-reverse
flex-flow row
flex-flow nowrap
flex-flow column-reverse
flex-flow column
flex-direction row-reverse
flex-direction row
flex-direction column-reverse
flex-direction column
flex none
flex auto
align-self stretch
Specification: 1 2
๐ Browser Support
align-self normal
flex_context baseline
align-self auto
Specification: 1 2
๐ Browser Support
flex_context baseline
align-content Supported in Flex Layout
Specification: 1 2
๐ Browser Support
print-color-adjust exact
print-color-adjust economy
background fixed
text-transform Dutch IJ digraph
valid form
Specification: 1 2
๐ Browser Support
invalid form
transform-origin On SVG elements
animation-direction reverse
animation-direction alternate-reverse
properties -webkit-line-snap
properties -webkit-line-align
text-align-last start
text-align-last right
text-align-last left
text-align-last justify
text-align-last end
text-align-last center
text-align-last auto
filter sepia
filter saturate
filter opacity
filter none
filter invert
filter hue-rotate
filter grayscale
filter drop-shadow
filter contrast
filter brightness
filter blur
types filter-function
filter-function sepia
filter-function saturate
filter-function opacity
filter-function invert
filter-function hue-rotate
filter-function grayscale
filter-function drop-shadow
filter-function contrast
filter-function brightness
filter-function blur
media nested-queries
properties -webkit-line-grid
properties -webkit-column-axis
image cross-fade
repeating-linear-gradient to
linear-gradient to
2011year
137 properties
text-overflow Two-value syntax
text-overflow string
hyphens Hyphenation dictionary for Ukrainian (uk, uk-*)
hyphens Hyphenation dictionary for Hungarian (hu, hu-*)
hyphens Hyphenation dictionary for Galician (gl, gl-*)
font-stretch ultra-expanded
font-stretch ultra-condensed
font-stretch semi-expanded
font-stretch semi-condensed
font-stretch normal
font-stretch extra-expanded
font-stretch extra-condensed
font-stretch expanded
font-stretch condensed
text-align match-parent
font-feature-settings normal
properties border-image-width
border-image-width auto
border-image optional <border-image-slice>
border-image fill
properties -webkit-hyphenate-limit-lines
radial-gradient at
hyphens Hyphenation dictionary for Welsh (cy, cy-*)
hyphens Hyphenation dictionary for Upper Sorbian (hsb, hsb-*)
hyphens Hyphenation dictionary for Slovenian (sl, sl-*)
hyphens Hyphenation dictionary for Portuguese (pt, pt-*)
hyphens Hyphenation dictionary for Mongolian (mn, mn-*)
hyphens Hyphenation dictionary for Lithuanian (lt, lt-*)
hyphens Hyphenation dictionary for Latin (la, la-*)
hyphens Hyphenation dictionary for Kurmanji (kmr, kmr-*)
hyphens Hyphenation dictionary for Interlingua (ia, ia-*)
hyphens Hyphenation dictionary for Icelandic (is, is-*)
hyphens Hyphenation dictionary for German, Traditional Orthography of 1901 (de-1901, de-AT-1901, de-DE-1901)
hyphens Hyphenation dictionary for German, Swiss Orthography (de-CH, de-CH-*)
hyphens Hyphenation dictionary for Finnish (fi, fi-*)
hyphens Hyphenation dictionary for Estonian (et, et-*)
hyphens Hyphenation dictionary for Esperanto (eo, eo-*)
hyphens Hyphenation dictionary for Croatian (hr, hr-*)
hyphens Hyphenation dictionary for Bulgarian (bg, bg-*)
hyphens Hyphenation dictionary for Bosnian, Serbian, and Serbo-Croatian (sh, sh-*, sr, sr-*, bs, bs-*)
hyphens Hyphenation dictionary for Afrikaans (af, af-*)
page size
properties border-image-source
border-image-source none
properties border-image-slice
properties border-image-repeat
border-image-repeat stretch
border-image-repeat repeat
properties border-image-outset
hyphens Hyphenation dictionary for Norwegian (Nynorsk) (nn, nn-*)
text-decoration-style wavy
text-decoration-style solid
text-decoration-style double
text-decoration-style dotted
text-decoration-style dashed
text-decoration-line underline
text-decoration-line overline
text-decoration-line none
text-decoration-line line-through
text-decoration-color transparent
text-decoration-color currentColor
text-decoration text-decoration-color and text-decoration-style included in shorthand
Specification: 1 2
๐ Browser Support
properties -moz-orient
selectors -moz-progress-bar
list-style-type upper-armenian
list-style-type lower-armenian
list-style-type footnotes
list-style-type asterisks
hyphens Hyphenation dictionary for Turkish (tr, tr-*)
hyphens Hyphenation dictionary for Swedish (sv, sv-*)
hyphens Hyphenation dictionary for Spanish (es, es-*)
hyphens Hyphenation dictionary for Russian (ru, ru-*)
hyphens Hyphenation dictionary for Norwegian (Bokmรฅl) (no, no-*, nb, nb-*)
hyphens Hyphenation dictionary for Italian (it, it-*)
hyphens Hyphenation dictionary for German, Reformed Orthography of 1996 (de, de-1996, de-DE, de-AT, de-*)
hyphens Hyphenation dictionary for French (fr, fr-*)
hyphens Hyphenation dictionary for English (en, en-*)
hyphens Hyphenation dictionary for Dutch (nl, nl-*)
hyphens Hyphenation dictionary for Danish (da, da-*)
hyphens Hyphenation dictionary for Catalan (ca, ca-*)
text-orientation upright
text-orientation sideways
backface-visibility visible
backface-visibility hidden
properties -webkit-line-box-contain
selectors -webkit-meter-suboptimum-value
selectors -webkit-meter-optimum-value
selectors -webkit-meter-even-less-good-value
selectors -webkit-meter-bar
properties -webkit-locale
properties -webkit-hyphenate-limit-before
properties -webkit-hyphenate-limit-after
properties columns
properties column-width
properties column-rule-width
properties column-rule-style
properties column-rule-color
properties column-rule
paged_context page
paged_context always
paged_context page
paged_context avoid-page
paged_context always
selectors -moz-submit-invalid
media -moz-device-pixel-ratio
transition normal
transition allow-discrete
font-language-override normal
background-image image-rect
background-image element
before Animation and transition support
after Animation and transition support
selectors -moz-window-inactive
easing-function cubic-bezier
types -moz-image-rect
media resolution
properties writing-mode
writing-mode tb-rl
writing-mode tb
writing-mode rl-tb
writing-mode rl
writing-mode lr-tb
writing-mode lr
properties font-stretch
font-size rem values
background-repeat space
background-repeat round
background-position-y Side-relative values (such as bottom 10%)
background-position-x Side-relative values (such as left 10%)
resolution dpi
resolution dpcm
length vw
length vh
types calc
calc <number> value support
calc Gradient color stops support
properties -webkit-text-combine
2010year
104 properties
properties border-image
inline-size auto
border-radius percentages
block-size auto
properties -webkit-min-logical-width
properties -webkit-min-logical-height
properties -webkit-max-logical-width
properties -webkit-max-logical-height
properties -webkit-logical-width
properties -webkit-logical-height
properties -webkit-border-before
easing-function steps
hyphens none
hyphens manual
hyphens auto
properties vector-effect
vector-effect none
vector-effect non-scaling-stroke
hyphenate-character auto
column-span none
column-span all
indeterminate progress
background background-size
background background-origin
background background-clip
properties -webkit-tap-highlight-color
text-rendering optimizeSpeed
text-rendering optimizeLegibility
list-style-type urdu
list-style-type upper-norwegian
list-style-type upper-hexadecimal
list-style-type tigrinya-et-abegede
list-style-type tigrinya-et
list-style-type tigrinya-er-abegede
list-style-type tigrinya-er
list-style-type tigre
list-style-type tibetan
list-style-type thai
list-style-type telugu
list-style-type somali
list-style-type sidama
list-style-type persian
list-style-type oromo
list-style-type oriya
list-style-type octal
list-style-type myanmar
list-style-type mongolian
list-style-type malayalam
list-style-type lower-norwegian
list-style-type lower-hexadecimal
list-style-type lao
list-style-type khmer
list-style-type kannada
list-style-type gurmukhi
list-style-type gujarati
list-style-type ethiopic-halehame-tig
list-style-type ethiopic-halehame-so-et
list-style-type ethiopic-halehame-sid-et
list-style-type ethiopic-halehame-om-et
list-style-type ethiopic-halehame-gez
list-style-type ethiopic-halehame-am-et
list-style-type ethiopic-halehame-aa-et
list-style-type ethiopic-halehame-aa-er
list-style-type ethiopic-abegede-ti-et
list-style-type ethiopic-abegede-ti-er
list-style-type ethiopic-abegede-gez
list-style-type ethiopic-abegede-am-et
list-style-type ethiopic-abegede
list-style-type ethiopic
list-style-type devanagari
list-style-type cjk-heavenly-stem
list-style-type cjk-earthly-branch
list-style-type cambodian
list-style-type binary
list-style-type bengali
list-style-type arabic-indic
list-style-type amharic-abegede
list-style-type amharic
list-style-type afar
properties line-clamp
selectors -webkit-inner-spin-button
properties background-repeat-y
properties background-repeat-x
selectors out-of-range
selectors in-range
transform-origin Three-value syntax
properties box-shadow
background-position Side-relative values (such as bottom 10% right 20%)
position Four-value syntax for offset from any edge
properties border-top-right-radius
border-top-right-radius percentages
properties border-top-left-radius
border-top-left-radius percentages
properties border-radius
border-radius 4 values for 4 corners
properties border-bottom-right-radius
border-bottom-right-radius percentages
properties border-bottom-left-radius
border-bottom-left-radius percentages
properties image-rendering
image-rendering optimizeSpeed
image-rendering optimizeQuality
image-rendering auto
types gradient
2009year
106 properties
length rem
background-repeat 2-value
animation-fill-mode none
animation-fill-mode forwards
animation-fill-mode both
animation-fill-mode backwards
properties -webkit-mask-repeat-y
properties -webkit-mask-repeat-x
properties background-size
background-size cover
background-size contain
selectors valid
selectors required
selectors optional
selectors invalid
selectors default
media aspect-ratio
font-face WOFF
properties clip-rule
clip-rule nonzero
clip-rule evenodd
properties clip-path
clip-path On HTML elements
src format(keyword)
transform-style preserve-3d
transform-style flat
transform 3d
shape-rendering optimizeSpeed
shape-rendering geometricPrecision
shape-rendering crispEdges
resize Support on block level, replaced, table cell, or inline block elements
pointer-events visibleStroke
pointer-events visiblePainted
pointer-events visibleFill
perspective none
mask-image SVG masks
properties glyph-orientation-vertical
properties font-smooth
border-image gradient
Specification: 1 2
๐ Browser Support
animation-timing-function step-start
animation-timing-function step-end
animation-timing-function linear
animation-timing-function ease-out
animation-timing-function ease-in-out
animation-timing-function ease-in
animation-timing-function ease
animation-play-state running
animation-play-state paused
animation-name none
animation-iteration-count infinite
animation-direction normal
animation-direction alternate
animation step-start
animation step-end
animation running
animation reverse
animation paused
animation normal
animation none
animation linear
animation infinite
animation forwards
animation ease-out
animation ease-in-out
animation ease-in
animation ease
animation both
animation backwards
animation auto
Specification: 1 2
๐ Browser Support
animation alternate-reverse
animation alternate
properties -webkit-box-reflect
transform-function translateZ
transform-function translate3d
transform-function scaleZ
transform-function scale3d
transform-function rotateZ
transform-function rotateY
transform-function rotateX
transform-function rotate3d
transform-function perspective
transform-function matrix3d
media -webkit-transition
media -webkit-transform-3d
media -webkit-transform-2d
media -webkit-animation
pointer-events Applies to HTML elements
Specification: 1 2
๐ Browser Support
properties -webkit-transform-origin-z
properties -webkit-perspective-origin-y
properties -webkit-perspective-origin-x
selectors -webkit-scrollbar-track-piece
selectors -webkit-scrollbar-track
selectors -webkit-scrollbar-thumb
selectors -webkit-scrollbar-corner
selectors -webkit-scrollbar-button
selectors -webkit-scrollbar
selectors -webkit-resizer
types angle-percentage
types angle
angle turn
angle rad
angle grad
angle deg
length vmax
properties outline
visited Restrict CSS properties allowed in a statement using :visited for privacy
2008year
147 properties
transition-property IDENT value
Specification: 1 2
๐ Browser Support
page-break-before avoid
page-break-after avoid
mask-origin padding
mask-origin content
mask-origin border
mask-image Multiple mask images
mask-clip text
mask-clip padding
mask-clip content
mask-clip border
properties mask-border-width
properties mask-border-source
properties mask-border-slice
properties mask-border-repeat
properties mask-border-outset
properties mask-border
column-rule-color currentColor
column-rule currentColor
properties color-rendering
color-rendering optimizeSpeed
color-rendering optimizeQuality
color-rendering auto
box-shadow Spread radius
Specification: 1 2
๐ Browser Support
box-shadow inset
properties baseline-shift
baseline-shift super
baseline-shift sub
baseline-shift baseline
background-image gradients
properties background-clip
background-attachment local
properties alignment-baseline
alignment-baseline text-before-edge
alignment-baseline text-after-edge
alignment-baseline middle
alignment-baseline mathematical
alignment-baseline ideographic
alignment-baseline central
alignment-baseline baseline
alignment-baseline alphabetic
properties -webkit-user-drag
properties -webkit-transform-origin-y
properties -webkit-transform-origin-x
properties -webkit-text-decorations-in-effect
properties -webkit-rtl-ordering
properties -webkit-nbsp-mode
properties -webkit-column-break-inside
properties -webkit-column-break-before
properties -webkit-column-break-after
properties -webkit-border-vertical-spacing
properties -webkit-border-horizontal-spacing
visited :visited privacy: selector does not match <link> elements
perspective-origin top
perspective-origin right
perspective-origin left
perspective-origin center
perspective-origin bottom
properties -webkit-touch-callout
properties text-anchor
text-anchor start
text-anchor middle
text-anchor end
properties stop-opacity
properties stop-color
stop-color transparent
stop-color currentColor
properties shape-rendering
shape-rendering auto
properties marker-start
marker-start none
properties marker-mid
marker-mid none
properties marker-end
marker-end none
properties marker
marker none
properties lighting-color
lighting-color transparent
lighting-color currentColor
properties font-size-adjust
font-size-adjust none
properties flood-opacity
properties flood-color
flood-color transparent
flood-color currentColor
properties fill-rule
fill-rule nonzero
fill-rule evenodd
properties fill
fill none
cursor none
properties color-interpolation
color-interpolation sRGB
color-interpolation linearRGB
color-interpolation auto
selectors -moz-broken
background-image SVG images
types resolution
types ratio
font-face unicode-range
font-face SVG fonts
zoom reset
transition-timing-function step-start
transition-timing-function step-end
transition-timing-function linear
transition-timing-function ease-out
transition-timing-function ease-in-out
transition-timing-function ease-in
transition-timing-function ease
transition-property none
transition-property all
transition step-start
transition step-end
transition none
transition linear
transition ease-out
transition ease-in-out
transition ease-in
transition ease
transition all
transform none
properties -webkit-mask-position-y
properties -webkit-mask-position-x
properties -webkit-mask-composite
properties -webkit-mask-box-image
selectors only-of-type
selectors nth-of-type
selectors nth-last-of-type
selectors nth-child
selectors last-of-type
selectors first-of-type
types transform-function
transform-function translateY
transform-function translateX
transform-function translate
transform-function skewY
transform-function skewX
transform-function skew
transform-function scaleY
transform-function scaleX
transform-function scale
transform-function rotate
transform-function matrix
types time
types easing-function
named-color transparent
2007year
96 properties
word-break normal
word-break break-word
word-break break-all
properties user-select
user-modify read-write-plaintext-only
properties resize
resize vertical
resize none
resize horizontal
resize both
overflow-y visible
overflow-y scroll
overflow-y hidden
overflow-y auto
overflow-x visible
overflow-x scroll
overflow-x hidden
overflow-x auto
columns auto
column-rule-width thin
column-rule-width thick
column-rule-width medium
column-rule-style solid
column-rule-style ridge
column-rule-style outset
column-rule-style none
column-rule-style inset
column-rule-style hidden
column-rule-style groove
column-rule-style double
column-rule-style dotted
column-rule-style dashed
column-rule-color transparent
column-rule transparent
column-rule thin
column-rule thick
column-rule solid
column-rule ridge
column-rule outset
column-rule none
column-rule medium
column-rule inset
column-rule hidden
column-rule groove
column-rule double
column-rule dotted
column-rule dashed
properties color-interpolation-filters
color-interpolation-filters auto
box-shadow none
border-radius Elliptical borders
border-image stretch
border-image space
border-image round
border-image repeat
border-image none
background-size auto
background-origin padding-box
background-origin border-box
background-clip padding-box
background-clip border-box
appearance none
properties -webkit-text-stroke-width
properties -webkit-text-stroke-color
properties -webkit-text-stroke
properties -webkit-text-fill-color
media -webkit-min-device-pixel-ratio
media -webkit-max-device-pixel-ratio
media -webkit-device-pixel-ratio
white-space pre-line
properties text-size-adjust
box-shadow Multiple shadows
properties box-pack
properties box-orient
properties box-ordinal-group
properties box-lines
properties box-flex-group
properties box-flex
properties box-direction
properties box-align
border-top-right-radius Elliptical corners
border-top-left-radius Elliptical corners
border-bottom-right-radius Elliptical corners
border-bottom-left-radius Elliptical corners
properties background-origin
background-origin content-box
background-clip content-box
background SVG image as background
appearance menulist-button
properties -webkit-text-security
indeterminate checkbox
selectors -webkit-search-results-button
selectors -webkit-search-cancel-button
selectors right
selectors left
selectors first
2006year
20 properties
media width
media orientation
media monochrome
media height
media grid
media device-width
media device-height
media device-aspect-ratio
media color
background-attachment fixed
display ruby-text-container
display ruby-text
display ruby-base-container
display ruby-base
display ruby
selectors first-child
selectors read-write
selectors read-only
selectors nth-last-child
selectors indeterminate
2005year
76 properties
properties stroke-width
properties stroke-opacity
properties stroke-miterlimit
properties stroke-linejoin
stroke-linejoin round
stroke-linejoin miter
stroke-linejoin bevel
properties stroke-linecap
stroke-linecap square
stroke-linecap round
stroke-linecap butt
properties stroke-dashoffset
properties stroke-dasharray
stroke-dasharray none
properties stroke
stroke none
quotes none
properties pointer-events
pointer-events visible
pointer-events stroke
pointer-events painted
pointer-events none
pointer-events fill
pointer-events auto
pointer-events all
outline-color currentColor
outline currentColor
cursor vertical-text
cursor url() positioning syntax
cursor nwse-resize
cursor ns-resize
cursor nesw-resize
cursor ew-resize
cursor copy
cursor context-menu
cursor cell
cursor alias
column-width auto
properties column-gap
column-gap normal
column-count auto
color currentColor
border-top-color currentColor
border-top currentColor
border-right-color currentColor
border-right currentColor
border-left-color currentColor
border-left currentColor
border-color currentColor
border-bottom-color currentColor
border-bottom currentColor
border currentColor
background-color currentColor
background currentColor
selectors only-child
types counters
color currentcolor
user-select none
transform-origin top
transform-origin right
transform-origin left
transform-origin center
transform-origin bottom
line-break normal
white-space pre-wrap
properties widows
text-overflow ellipsis
text-overflow clip
page-break-inside avoid
page-break-inside auto
properties orphans
background-repeat Multiple backgrounds
background-position Multiple backgrounds
background-image Multiple backgrounds
background-attachment Multiple backgrounds
background Multiple backgrounds
2004year
124 properties
media Media feature expressions
Specification: 1 2
๐ Browser Support
user-select text
user-select auto
user-select all
properties user-modify
unicode-bidi normal
unicode-bidi embed
unicode-bidi bidi-override
properties text-rendering
text-rendering geometricPrecision
text-rendering auto
text-align start
text-align right
text-align left
text-align end
text-align center
overflow visible
overflow scroll
overflow hidden
overflow auto
properties opacity
max-height none
list-style-type hangul-consonant
list-style-type hangul
list-style-type ethiopic-halehame-ti-et
list-style-type ethiopic-halehame-ti-er
list-style-type ethiopic-halehame-am
list-style-type ethiopic-halehame
list-style-type cjk-ideographic
properties fill-opacity
properties dominant-baseline
dominant-baseline middle
dominant-baseline mathematical
dominant-baseline ideographic
dominant-baseline hanging
dominant-baseline central
dominant-baseline auto
dominant-baseline alphabetic
display table-caption
none Setting display: none on an <option> element hides it from the dropdown.
properties counter-reset
counter-reset none
counter-reset list-item
properties counter-increment
counter-increment none
counter-increment list-item
caption-side top-outside
caption-side bottom-outside
box-sizing content-box
box-sizing border-box
appearance textfield
appearance textarea
appearance searchfield
appearance radio
appearance progress-bar
appearance meter
appearance menulist
appearance listbox
appearance checkbox
appearance button
properties -moz-user-input
-moz-user-input none
-moz-user-input auto
properties -moz-user-focus
properties -moz-force-broken-image-icon
properties -moz-float-edge
universal namespaces
type namespaces
selectors target
selectors subsequent-sibling
selectors not
selectors namespace
selectors last-child
selectors lang
selectors enabled
selectors empty
selectors disabled
selectors checked
selectors attribute
selectors -moz-only-whitespace
selectors -moz-list-number
selectors -moz-list-bullet
length ch
types counter
color hsl
types attr
page-break-before right
page-break-before left
page-break-before auto
page-break-before always
page-break-after right
page-break-after left
page-break-after auto
page-break-after always
outline-width thin
outline-width thick
outline-width medium
outline-style solid
outline-style ridge
outline-style outset
outline-style none
outline-style inset
outline-style groove
outline-style double
outline-style dotted
outline-style dashed
outline-style auto
properties outline-offset
outline-color transparent
outline transparent
outline thin
outline thick
outline solid
outline ridge
outline outset
outline none
outline medium
outline inset
outline groove
outline double
outline dotted
outline dashed
outline auto
global_keywords initial
2003year
273 properties
properties text-shadow
text-shadow none
border-collapse separate
border-collapse collapse
selectors selection
at-rules namespace
width auto
white-space normal
visibility visible
visibility hidden
vertical-align top
vertical-align text-top
vertical-align text-bottom
vertical-align super
vertical-align sub
vertical-align middle
vertical-align bottom
vertical-align baseline
top auto
text-transform uppercase
text-transform none
text-transform lowercase
text-decoration underline
text-decoration overline
text-decoration none
text-decoration line-through
text-decoration blink
text-align justify
right auto
position static
position relative
position absolute
properties page
page auto
overflow-wrap normal
max-width none
list-style-type none
list-style-type katakana-iroha
list-style-type katakana
list-style-type hiragana-iroha
list-style-type hiragana
list-style-type hebrew
list-style-type decimal-leading-zero
list-style-position outside
list-style-position inside
list-style-image none
list-style outside
list-style none
Specification: 1 2
๐ Browser Support
list-style inside
line-height normal
letter-spacing normal
left auto
height auto
font-weight normal
font-weight lighter
font-weight bolder
font-weight bold
font-variant normal
font-style oblique
font-style normal
font-style italic
font-family serif
font-family sans-serif
font-family monospace
font-family fantasy
font-family cursive
float right
float none
float left
direction rtl
direction ltr
content open-quote
content normal
content none
content no-open-quote
content no-close-quote
content close-quote
color transparent
clip auto
clear right
clear none
clear left
clear both
caption-side top
caption-side right
caption-side left
caption-side bottom
bottom auto
border-width thin
border-width thick
border-width medium
border-top-width thin
border-top-width thick
border-top-width medium
border-top-style solid
border-top-style ridge
border-top-style outset
border-top-style none
border-top-style inset
border-top-style hidden
border-top-style groove
border-top-style double
border-top-style dotted
border-top-style dashed
border-top-color transparent
border-top transparent
border-top thin
border-top thick
border-top solid
border-top ridge
border-top outset
border-top none
border-top medium
border-top inset
border-top hidden
border-top groove
border-top double
border-top dotted
border-top dashed
border-style solid
border-style ridge
border-style outset
border-style none
border-style inset
border-style hidden
border-style groove
border-style double
border-style dotted
border-style dashed
border-right-width thin
border-right-width thick
border-right-width medium
border-right-style solid
border-right-style ridge
border-right-style outset
border-right-style none
border-right-style inset
border-right-style hidden
border-right-style groove
border-right-style double
border-right-style dotted
border-right-style dashed
border-right-color transparent
border-right transparent
border-right thin
border-right thick
border-right solid
border-right ridge
border-right outset
border-right none
border-right medium
border-right inset
border-right hidden
border-right groove
border-right double
border-right dotted
border-right dashed
border-left-width thin
border-left-width thick
border-left-width medium
border-left-style solid
border-left-style ridge
border-left-style outset
border-left-style none
border-left-style inset
border-left-style hidden
border-left-style groove
border-left-style double
border-left-style dotted
border-left-style dashed
border-left-color transparent
border-left transparent
border-left thin
border-left thick
border-left solid
border-left ridge
border-left outset
border-left none
border-left medium
border-left inset
border-left hidden
border-left groove
border-left double
border-left dotted
border-left dashed
border-color transparent
border-bottom-width thin
border-bottom-width thick
border-bottom-width medium
border-bottom-style solid
border-bottom-style ridge
border-bottom-style outset
border-bottom-style none
border-bottom-style inset
border-bottom-style hidden
border-bottom-style groove
border-bottom-style double
border-bottom-style dotted
border-bottom-style dashed
border-bottom-color transparent
border-bottom transparent
border-bottom thin
border-bottom thick
border-bottom solid
border-bottom ridge
border-bottom outset
border-bottom none
border-bottom medium
border-bottom inset
border-bottom hidden
border-bottom groove
border-bottom double
border-bottom dotted
border-bottom dashed
border transparent
border thin
border thick
border solid
border ridge
border outset
border none
border medium
border inset
border hidden
border groove
border double
border dotted
border dashed
background-position top
background-position right
background-position left
background-position center
background-position bottom
background-color transparent
background transparent
background space
background scroll
background round
background repeat-y
background repeat-x
background repeat
background none
background no-repeat
background local
selectors root
word-spacing On SVG elements
Specification: 1 2
๐ Browser Support
text-transform ร โ SS
properties page-break-inside
properties outline-width
properties outline-style
properties outline-color
properties max-height
letter-spacing On SVG elements
Specification: 1 2
๐ Browser Support
display table-row-group
display table-row
display table-header-group
display table-footer-group
display table-column-group
display table-column
display table-cell
display table
display inline-table
display inline-block
content url
content Element replacement
properties box-sizing
hover All elements support
Specification: 1 2
๐ Browser Support
selectors focus
selectors first-line
selectors first-letter
selectors before
selectors after
active Non-a element support
Specification: 1 2
๐ Browser Support
2001year
29 properties
at-rules page
list-style-type upper-roman
list-style-type upper-latin
list-style-type upper-greek
list-style-type upper-alpha
list-style-type lower-roman
list-style-type lower-latin
list-style-type lower-greek
list-style-type lower-alpha
list-style-type georgian
list-style-type armenian
at-rules media
font-face src
font-face font-family
properties text-underline-position
text-underline-position auto
properties text-overflow
display list-item
cursor url
cursor row-resize
cursor progress
cursor pointer
cursor not-allowed
cursor no-drop
cursor col-resize
cursor all-scroll
properties background-position-y
properties background-position-x
string Unicode escaped characters (\xx)
2000year
38 properties
at-rules charset
properties zoom
properties word-break
word-break keep-all
properties unicode-bidi
properties text-align-last
properties right
properties overflow-wrap
overflow-wrap break-word
properties line-break
properties left
properties font-size
properties direction
properties border-top-style
properties border-right-style
properties border-right
properties border-left-style
properties border-bottom-style
types shape
shape rect
properties white-space
white-space Support on <textarea>
Specification: 1 2
๐ Browser Support
white-space pre
white-space nowrap
visibility collapse
properties quotes
position fixed
properties min-width
properties min-height
properties max-width
properties empty-cells
empty-cells show
empty-cells hide
properties content
properties caption-side
properties border-spacing
selectors child
global_keywords inherit
1999year
9 properties
properties top
properties table-layout
table-layout fixed
table-layout auto
properties overflow-y
properties overflow-x
properties ime-mode
properties bottom
properties border-collapse
1998year
12 properties
at-rules import
properties word-spacing
word-spacing normal
margin-top auto
margin-right auto
margin-left auto
margin-bottom auto
margin auto
selectors universal
selectors next-sibling
link :link privacy: selector does not match <link> elements
Specification: 1 2
๐ Browser Support
types dimension
1997year
103 properties
at-rules font-face
font-face font-weight
font-face font-variant
font-face font-style
properties z-index
z-index Negative values
z-index auto
properties width
properties visibility
properties vertical-align
properties text-transform
text-transform i โ ฤฐ and ฤฑ โ I
text-transform ฮฃ โ ฯ or word-final ฯ
text-transform capitalize
properties position
properties page-break-before
properties page-break-after
properties padding-top
properties padding-right
properties padding-left
properties padding-bottom
properties padding
properties overflow
properties list-style-type
list-style-type square
list-style-type disc
list-style-type decimal
list-style-type circle
properties list-style-position
properties list-style-image
properties list-style
properties line-height
properties letter-spacing
properties height
properties font-variant
font-variant i โ ฤฐ and ฤฑ โ I
properties font-style
font status-bar
font small-caption
font message-box
font menu
font icon
font caption
properties float
properties display
display none
display inline
display block
properties cursor
cursor wait
cursor w-resize
cursor text
cursor sw-resize
cursor se-resize
cursor s-resize
cursor nw-resize
cursor ne-resize
cursor n-resize
cursor move
cursor help
cursor e-resize
cursor default
cursor crosshair
cursor auto
properties clip
properties clear
properties border-width
properties border-top-width
properties border-top-color
properties border-top
properties border-style
properties border-right-width
properties border-right-color
properties border-left-width
properties border-left-color
properties border-left
properties border-color
properties border-bottom-width
properties border-bottom-color
properties border-bottom
properties border
properties background-repeat
background-repeat repeat-y
background-repeat repeat-x
background-repeat repeat
background-repeat no-repeat
properties background-position
properties background-image
background-image none
properties background-color
properties background-attachment
background-attachment scroll
properties background
selectors visited
selectors hover
hover <a> element support
Specification: 1 2
๐ Browser Support
selectors active
types position
position Syntax combining a keyword and <length> or <percentage>
types overflow
types line-style
length ex
color rgb
1996year
33 properties