//
// CSS value names
//
inherit
initial
unset
revert
revert-layer

//
// CSS_PROP_OUTLINE_STYLE
// CSS_PROP_BORDER_TOP_STYLE
// CSS_PROP_BORDER_BOTTOM_STYLE
// CSS_PROP_BORDER_LEFT_STYLE
// The order here must match the order of the BorderStyle enum in RenderStyleConstants.h.
none
hidden
inset
groove
outset
ridge
dotted
dashed
solid
double

//
// CSS_PROP_FONT:
//
caption
icon
menu
message-box
small-caption
-webkit-mini-control
-webkit-small-control
-webkit-control

#if defined(WTF_PLATFORM_COCOA) && WTF_PLATFORM_COCOA
-apple-system-headline
-apple-system-body
-apple-system-subheadline
-apple-system-footnote
-apple-system-caption1
-apple-system-caption2
-apple-system-short-headline
-apple-system-short-body
-apple-system-short-subheadline
-apple-system-short-footnote
-apple-system-short-caption1
-apple-system-tall-body
-apple-system-title0
-apple-system-title1
-apple-system-title2
-apple-system-title3
-apple-system-title4
#endif

// This has to go after the -apple-system versions.
status-bar

//
// CSS_PROP_FONT_STYLE:
//
//normal
italic
oblique
// The following is only allowed in @font-face:
all
//
// CSS_PROP_FONT_VARIANT:
//
//normal
small-caps

// font-variant-ligatures:
//
common-ligatures
no-common-ligatures
discretionary-ligatures
no-discretionary-ligatures
historical-ligatures
no-historical-ligatures
contextual
no-contextual

// font-variant-caps
//
// FIXME: Unify this with plain font-variant
// small-caps
all-small-caps
petite-caps
all-petite-caps
unicase
titling-caps

// font-variant-numeric
//
lining-nums
oldstyle-nums
proportional-nums
tabular-nums
diagonal-fractions
stacked-fractions
ordinal
slashed-zero

// font-variant-alternates
//
historical-forms

// font-variant-east-asian
//
jis78
jis83
jis90
jis04
simplified
traditional
full-width
proportional-width
ruby

//
// CSS_PROP_FONT_WEIGHT:
//
normal
bold
bolder
lighter

//
// CSS_PROP_FONT_SIZE:
//
xx-small
x-small
small
medium
large
x-large
xx-large
-webkit-xxx-large
-webkit-ruby-text
smaller
larger

//
// CSS_PROP_FONT_STRETCH:
//
//normal
wider
narrower
ultra-condensed
extra-condensed
condensed
semi-condensed
semi-expanded
expanded
extra-expanded
ultra-expanded
//
// CSS_PROP_GENERIC_FONT_FAMILY:
//
serif
sans-serif
cursive
fantasy
monospace
-webkit-body
-webkit-pictograph
system-ui
//
//
// CSS_PROP_*_COLOR
//
alpha
aqua
black
blue
fuchsia
gray
green
lime
maroon
navy
olive
orange
purple
red
silver
teal
white
yellow
transparent
-webkit-link
-webkit-activelink
activeborder
activecaption
activetext
appworkspace
background
buttonface
buttonhighlight
buttonshadow
buttontext
activebuttontext
canvas
canvastext
captiontext
field
fieldtext
graytext
highlight
highlighttext
inactiveborder
inactivecaption
inactivecaptiontext
infobackground
infotext
linktext
luminance
menutext
scrollbar
threeddarkshadow
threedface
threedhighlight
threedlightshadow
threedshadow
visitedtext
window
windowframe
windowtext
#if (defined(WTF_PLATFORM_MAC) && WTF_PLATFORM_MAC) || (defined(WTF_PLATFORM_IOS_FAMILY) && WTF_PLATFORM_IOS_FAMILY)
-apple-system-header-text
-apple-system-text-background
-apple-system-control-background
-apple-system-placeholder-text
-apple-system-label
-apple-system-secondary-label
-apple-system-tertiary-label
-apple-system-quaternary-label
-apple-system-grid
-apple-system-separator
-apple-system-container-border
-apple-system-background
-apple-system-secondary-background
-apple-system-tertiary-background
-apple-system-grouped-background
-apple-system-secondary-grouped-background
-apple-system-tertiary-grouped-background
-apple-system-selected-content-background
-apple-system-unemphasized-selected-content-background
-apple-wireless-playback-target-active
-apple-system-blue
-apple-system-brown
-apple-system-gray
-apple-system-green
-apple-system-orange
-apple-system-pink
-apple-system-purple
-apple-system-red
-apple-system-yellow
-apple-system-app-highlight-background
#endif
#if defined(WTF_PLATFORM_MAC) && WTF_PLATFORM_MAC
-apple-system-alternate-selected-text
-apple-system-control-accent
-apple-system-even-alternating-content-background
-apple-system-odd-alternating-content-background
-apple-system-selected-text
-apple-system-unemphasized-selected-text
-apple-system-selected-text-background
-apple-system-unemphasized-selected-text-background
-apple-system-find-highlight-background
#endif
#if defined(WTF_PLATFORM_IOS_FAMILY) && WTF_PLATFORM_IOS_FAMILY
-apple-system-indigo
-apple-system-teal
-apple-system-opaque-fill
-apple-system-opaque-secondary-fill
-apple-system-opaque-secondary-fill-disabled
-apple-system-opaque-tertiary-fill
-apple-system-opaque-separator
#endif
#if (defined(WTF_PLATFORM_MAC) && WTF_PLATFORM_MAC) || (defined(WTF_PLATFORM_IOS_FAMILY) && WTF_PLATFORM_IOS_FAMILY) || (defined(HAVE_OS_DARK_MODE_SUPPORT) && HAVE_OS_DARK_MODE_SUPPORT)
-webkit-control-background
#endif
-webkit-focus-ring-color
currentcolor
//
// colors in non strict mode
grey
-webkit-text
//
// CSS_PROP_BACKGROUND_REPEAT:
//
repeat
repeat-x
repeat-y
no-repeat
// round
// space
//
// CSS_PROP__WEBKIT_BACKGROUND_COMPOSITE:
//
clear
copy
source-over
source-in
source-out
source-atop
destination-over
destination-in
destination-out
destination-atop
xor
plus-darker
// highlight
plus-lighter
//
// CSS_PROP_VERTICAL_ALIGN:
//
baseline
middle
sub
super
text-top
text-bottom
top
bottom
// HTML alignment MIDDLE has no corresponding CSS alignment
-webkit-baseline-middle
//
// CSS_PROP_TEXT_ALIGN:
// The order here must match the order of the TextAlignMode enum in RenderStyleConstants.h.
//
-webkit-auto
left
right
center
justify
-webkit-left
-webkit-right
-webkit-center
-webkit-match-parent
//
// CSS_PROP_TEXT_JUSTIFY:
//
//auto
//none
inter-word
distribute
//
// CSS_PROP_CLEAR:
// CSS_PROP_FLOAT:
// none
// left
// right
inline-start
inline-end
//
// CSS_PROP_LIST_STYLE_POSITION:
//
outside
inside
//
// CSS_PROP_LIST_STYLE_TYPE:
// The order here must match the order of the ListStyleType enum in RenderStyleConstants.h.
//
disc
circle
square
decimal
decimal-leading-zero
arabic-indic
binary
bengali
cambodian
khmer
devanagari
gujarati
gurmukhi
kannada
lower-hexadecimal
lao
malayalam
mongolian
myanmar
octal
oriya
persian
urdu
telugu
tibetan
thai
upper-hexadecimal
lower-roman
upper-roman
lower-greek
lower-alpha
lower-latin
upper-alpha
upper-latin
afar
ethiopic-halehame-aa-et
ethiopic-halehame-aa-er
amharic
ethiopic-halehame-am-et
amharic-abegede
ethiopic-abegede-am-et
cjk-earthly-branch
cjk-heavenly-stem
ethiopic
ethiopic-halehame-gez
ethiopic-abegede
ethiopic-abegede-gez
hangul-consonant
hangul
lower-norwegian
oromo
ethiopic-halehame-om-et
sidama
ethiopic-halehame-sid-et
somali
ethiopic-halehame-so-et
tigre
ethiopic-halehame-tig
tigrinya-er
ethiopic-halehame-ti-er
tigrinya-er-abegede
ethiopic-abegede-ti-er
tigrinya-et
ethiopic-halehame-ti-et
tigrinya-et-abegede
ethiopic-abegede-ti-et
upper-greek
upper-norwegian
asterisks
footnotes
hebrew
armenian
lower-armenian
upper-armenian
georgian
cjk-ideographic
hiragana
katakana
hiragana-iroha
katakana-iroha
cjk-decimal
tamil
disclosure-open
disclosure-closed
japanese-informal
japanese-formal
korean-hangul-formal
korean-hanja-informal
korean-hanja-formal
simp-chinese-informal
simp-chinese-formal
trad-chinese-informal
trad-chinese-formal
ethiopic-numeric
//none
//
// CSS_PROP_DISPLAY:
// The order here must match the order of the DisplayType enum in RenderStyleConstants.h.
//
inline
block
list-item
inline-block
table
inline-table
table-row-group
table-header-group
table-footer-group
table-row
table-column-group
table-column
table-cell
table-caption
-webkit-box
-webkit-inline-box
flex
inline-flex
contents
grid
inline-grid
flow-root
flow
-webkit-inline-flex
-webkit-flex
//none
//
// CSS_PROP_CURSOR:
// The order here must match the order of the CursorType enum in RenderStyleConstants.h.
//
auto
default
// none
context-menu
help
pointer
progress
wait
cell
crosshair
text
vertical-text
alias
// copy
move
no-drop
not-allowed
grab
grabbing
e-resize
n-resize
ne-resize
nw-resize
s-resize
se-resize
sw-resize
w-resize
ew-resize
ns-resize
nesw-resize
nwse-resize
col-resize
row-resize
all-scroll
zoom-in
zoom-out
-webkit-grab
-webkit-grabbing
-webkit-zoom-in
-webkit-zoom-out
//
// CSS_PROP_CURSOR_VISIBILITY:
// auto
auto-hide
//
// CSS_PROP_DIRECTION:
//
ltr
rtl
//
// CSS_PROP_TEXT_TRANSFORM:
//
capitalize
uppercase
lowercase
//none
//
// CSS_PROP_VISIBILITY:
//
visible
//hidden
collapse
//
// Unordered rest
//
a3
a4
a5
above
absolute
always
avoid
b4
b5
below
bidi-override
blink
both
close-quote
crop
cross
embed
fixed
hand
hide
higher
invert
inverted
isolate-override
plaintext
-webkit-isolate
-webkit-isolate-override
-webkit-plaintext
landscape
ledger
legal
letter
level
line-through
local
loud
lower
mix
no-close-quote
no-open-quote
nowrap
open-quote
overline
portrait
pre
pre-line
pre-wrap
relative
scroll
separate
show
static
thick
thin
underline
wavy
ink
objects
-webkit-nowrap

// CSS3 Values
// CSS_PROP_BOX_ALIGN
stretch
start
end
//center
//baseline

#if defined(ENABLE_CSS_BOX_DECORATION_BREAK) && ENABLE_CSS_BOX_DECORATION_BREAK
// CSS_PROP_BOX_DECORATION_BREAK
clone
slice
#endif

// CSS_PROP_BOX_DIRECTION
// normal
reverse

// CSS_PROP_BOX_ORIENT
horizontal
vertical
inline-axis
block-axis

// CSS_PROP_BOX_PACK
// start
// end
// center
// justify

// CSS_PROP_BOX_LINES
single
multiple

// CSS_PROP_ALIGN_CONTENT
flex-start
flex-end
// center
space-between
space-around
space-evenly
// stretch

// CSS_PROP_ALIGN_ITEMS / CSS_PROP_ALIGN_SELF
// flex-start
// flex-end
// center
// baseline
first-baseline
last-baseline
// stretch

// CSS_PROP_JUSTIFY_CONTENT
// start
// end
// flex-start
// flex-end
// center
// space-between
// space-around
// space-evenly
// stretch

// CSS_PROP_JUSTIFY_ITEMS / CSS_PROP_JUSTIFY_SELF
// auto
// stretch
// baseline
// last baseline
// first baseline
// center
// start
// end
self-start
self-end
// flex-start
// flex-end
// left
// right
unsafe
safe
legacy

// CSS_PROP_FLEX_FLOW
row
row-reverse
column
column-reverse
// nowrap
// wrap
wrap-reverse

// CSS_PROP_MARQUEE_DIRECTION
forwards
backwards
ahead
// reverse
// left
// right
up
down
// auto

// CSS_PROP_MARQUEE_SPEED
slow
// normal
fast

// CSS_PROP_MARQUEE_REPETITION
infinite

// CSS_PROP_MARQUEE_STYLE
// none
slide
// scroll
alternate

//
// CSS_PROP__KHTML_USER_MODIFY
//
read-only
read-write
read-write-plaintext-only

//
// CSS_PROP__KHTML_USER_DRAG
//
element

//
// CSS_PROP__KHTML_USER_SELECT
//
ignore

//
// CSS_PROP_WIDTH/MIN_WIDTH/MAX_WIDTH
//
intrinsic
min-intrinsic

//
// CSS3 intrinsic dimension keywords
//
min-content
-webkit-min-content
max-content
-webkit-max-content
-webkit-fill-available
fit-content
-webkit-fit-content

//
// CSS_PROP_TEXT_OVERFLOW
//
clip
ellipsis

//
// CSS_PROP__KHTML_MARGIN_COLLAPSE
//
// collapse
// separate
discard

//
// CSS_PROP_TEXT_*_COLOR
//
dot-dash
dot-dot-dash
wave

//
// CSS_PROP_TEXT_*_MODE
//
continuous
skip-white-space

//
// CSS_PROP_WORD_BREAK
//
break-all
keep-all

//
// CSS_PROP_WORD_WRAP
//
break-word

//
// CSS_PROP_WHITE_SPACE
//
break-spaces

//
// CSS_PROP__KHTML_NBSP_MODE
//
space

//
// CSS_PROP__KHTML_LINE_BREAK
//
// auto
loose
// normal
strict
after-white-space
anywhere

// -webkit-appearance
// The order here must match the order in the ControlPart enum in ThemeTypes.h.
// All appearance values that should be accepted by the parser should be listed between 'checkbox' and 'textarea':
checkbox
radio
push-button
square-button
button
button-bevel
default-button
inner-spin-button
listbox
listitem
media-controls-background
media-controls-dark-bar-background
media-controls-fullscreen-background
media-controls-light-bar-background
media-current-time-display
media-enter-fullscreen-button
media-exit-fullscreen-button
media-fullscreen-volume-slider
media-fullscreen-volume-slider-thumb
media-mute-button
media-overlay-play-button
media-play-button
media-return-to-realtime-button
media-rewind-button
media-seek-back-button
media-seek-forward-button
media-slider
media-sliderthumb
media-time-remaining-display
media-toggle-closed-captions-button
media-volume-slider
media-volume-slider-container
media-volume-slider-mute-button
media-volume-sliderthumb
menulist
menulist-button
menulist-text
menulist-textfield
meter
progress-bar
progress-bar-value
slider-horizontal
slider-vertical
sliderthumb-horizontal
sliderthumb-vertical
caret
searchfield
searchfield-decoration
searchfield-results-decoration
searchfield-results-button
searchfield-cancel-button
textfield
relevancy-level-indicator
continuous-capacity-level-indicator
discrete-capacity-level-indicator
rating-level-indicator
#if defined(ENABLE_APPLE_PAY) && ENABLE_APPLE_PAY
-apple-pay-button
#endif
#if defined(ENABLE_INPUT_TYPE_COLOR) && ENABLE_INPUT_TYPE_COLOR
color-well
#endif
#if defined(ENABLE_DATALIST_ELEMENT) && ENABLE_DATALIST_ELEMENT
list-button
#endif
textarea
#if defined(ENABLE_ATTACHMENT_ELEMENT) && ENABLE_ATTACHMENT_ELEMENT
attachment
borderless-attachment
#endif
caps-lock-indicator

//
// CSS_PROP_BORDER_IMAGE
//
// stretch
// repeat
round

//
// CSS_PROP_BACKGROUND_CLIP/ORIGIN
//
// border/content/padding are deprecated and ultimately will only apply to the -webkit- form of these properties.
// border-box/content-box/padding-box should be used instead.
//
border
border-box
content
content-box
padding
padding-box

//
// Variables Implementation
//
var
-internal-variable-value

//
// Environment Variables
//
env

//
// CSS_PROP_BREAK_BEFORE/AFTER/INSIDE
//
avoid-column
avoid-page
page
recto
region
verso

// CSS Shapes
margin-box

// clip-path
stroke-box
view-box

//
// background-size
//
contain
cover

//
// CSS_PROP__KHTML_RTL_ORDERING
//
logical
visual

//
// CSS_PROP__WEBKIT_ANIMATION_DIRECTION
//
// alternate

alternate-reverse

//
// CSS_PROP__WEBKIT_ANIMATION_FILL_MODE
//
// forwards
// backwards
// both

//
// CSS_PROP__WEBKIT_ANIMATION_ITERATION_COUNT
//
// infinite

//
// CSS_PROP__WEBKIT_ANIMATION_PLAY_STATE
//
running
paused

//
// CSS_PROP__WEBKIT_TRANSFORM_STYLE
//
flat
preserve-3d
#if defined(ENABLE_CSS_TRANSFORM_STYLE_OPTIMIZED_3D) && ENABLE_CSS_TRANSFORM_STYLE_OPTIMIZED_3D
optimized-3d
#endif

//
// CSS_PROP__WEBKIT_TRANSITION_TIMING_FUNCTION
// CSS_PROP__WEBKIT_ANIMATION_TIMING_FUNCTION
//
ease
linear
ease-in
ease-out
ease-in-out
step-start
step-end
jump-start
jump-end
jump-none
jump-both
// start
// end

//
// CSS_PROP_ZOOM
//
document
reset

//
// CSS_PROP_POINTER_EVENTS
//
visiblePainted
visibleFill
visibleStroke
//visible
painted
fill
stroke
bounding-box
//all
//none

//
// CSS_PROP_SPEECH
//
spell-out
digits
literal-punctuation
no-punctuation

//
// -webkit-font-smoothing
//
// auto
// none
antialiased
subpixel-antialiased

// text-rendering
//auto
optimizeSpeed
optimizeLegibility
geometricPrecision

// -webkit-color-adjust
economy
exact

// -webkit-hyphenate-limit-lines
no-limit

// -webkit-hyphens
// none
manual
// auto

#if defined(ENABLE_OVERFLOW_SCROLLING_TOUCH) && ENABLE_OVERFLOW_SCROLLING_TOUCH
// -webkit-overflow-scrolling
// auto
touch
#endif

// -webkit-writing-mode
// SVG compatibility
lr
rl
tb
lr-tb
rl-tb
tb-rl
// Standard values from CSS3
horizontal-tb
vertical-rl
vertical-lr
horizontal-bt

// -webkit-ruby-position
after
before
inter-character

// -webkit-text-emphasis-position
over
under

// -webkit-text-emphasis-style
filled
open
dot
// circle
double-circle
triangle
sesame

// -webkit-radial-gradient
// circle
ellipse
closest-side
closest-corner
farthest-side
farthest-corner
// contain
// cover

// -webkit-text-orientation
sideways
sideways-right
upright
vertical-right
mixed

// -webkit-line-box-contain
font
glyphs
inline-box
initial-letter
replaced

// font-feature-settings
on
off

// image-rendering
// auto
// optimizeSpeed (deprecated)
optimizeQuality // ( deprecated)
crisp-edges
pixelated
-webkit-crisp-edges
-webkit-optimize-contrast

// shape-outside
nonzero
evenodd
at
// closest-side
// farthest-side

// -webkit-scroll-snap-points-x
// -webkit-scroll-snap-points-y
elements

// -webkit-scroll-snap-type
mandatory
proximity
// x
// y

break

wrap

// -webkit-line-align
edges

alphabetic

// position
sticky
-webkit-sticky

// (pointer:) media feature
// none
coarse
fine

// (hover:) media feature.
// none
hover

// blend modes
// normal
multiply
screen
overlay
darken
lighten
color-dodge
color-burn
hard-light
soft-light
difference
exclusion
hue
saturation
color
luminosity
// plus-darker
// plus-lighter

// isolation
// auto
isolate

// object-fit
// fill
// contain
// cover
// none
scale-down

// background-image, etc.
container-scroll
cross-fade
image-set
linear-gradient
radial-gradient
conic-gradient
repeating-linear-gradient
repeating-radial-gradient
repeating-conic-gradient
-webkit-canvas
-webkit-cross-fade
-webkit-gradient
-webkit-linear-gradient
-webkit-radial-gradient
-webkit-repeating-linear-gradient
-webkit-repeating-radial-gradient
-webkit-image-set
-webkit-named-image
filter
-webkit-filter
#if defined(ENABLE_CSS_PAINTING_API) && ENABLE_CSS_PAINTING_API
paint
#endif

// deprecated gradients
from
to
color-stop
radial

// content
attr
counter
counters

// clip
rect

// shapes
polygon

// @font-face src
format

// (-webkit-)filter
// invert
grayscale
sepia
saturate
hue-rotate
opacity
brightness
contrast
blur
drop-shadow
url
cubic-bezier
spring
steps
apple-invert-lightness

// colors
rgb
rgba
hsl
hsla
hwb
lab
lch
//color

// relative color identifiers
// from
r
g
b
h
s
l
// h
w
// b
// l
a
// b
// l
c
// h
// alpha

// transform
matrix
matrix3d
perspective
rotate
rotateX
rotateY
rotateZ
rotate3d
scale
scaleX
scaleY
scaleZ
scale3d
skew
skewX
skewY
translate
translateX
translateY
translateZ
translate3d

// transform-box
// border-box
// view-box
// stroke-box
// content-box
fill-box

// motion path
path

calc
-webkit-calc
min
max
clamp
pow
sqrt
hypot
sin
cos
e
pi
exp
log
asin
acos
atan
atan2
abs
sign
mod
rem
to-zero
nearest
infinity
-infinity
NaN

from-image

#if defined(ENABLE_CSS_IMAGE_RESOLUTION) && ENABLE_CSS_IMAGE_RESOLUTION
snap
#endif

// overflow
-webkit-paged-x
-webkit-paged-y

// paint-order
// normal
// fill
// stroke
markers

// grid-{column-start|column-end|row-start|row-end}
span

// grid-template-{columns|rows}
minmax

// grid-auto-flow
auto-flow
dense

// text-indent
each-line
// hanging

// -webkit-column-fill
balance

#if defined(ENABLE_CSS_TRAILING_WORD) && ENABLE_CSS_TRAILING_WORD
// -apple-trailing-word
-webkit-partially-balanced
#endif

#if defined(ENABLE_APPLE_PAY) && ENABLE_APPLE_PAY
// -apple-pay-button-style
white-outline

// -apple-pay-button-type
plain
buy
set-up
donate
check-out
book
subscribe
#if defined(ENABLE_APPLE_PAY_NEW_BUTTON_TYPES) && ENABLE_APPLE_PAY_NEW_BUTTON_TYPES
reload
add-money
top-up
order
rent
support
contribute
tip
#endif
#endif

// font-synthesis
weight
style

// will-change
scroll-position
//contents

// touch-action
// auto
// none
manipulation
pan-x
pan-y
pinch-zoom

// scroll-behavior
// auto
smooth

// overscroll-behavior
// contain

// hanging-punctuation
allow-end
first
force-end
last

// color-gamut
p3
rec2020
sRGB

// color() function
a98-rgb
display-p3
// lab
prophoto-rgb
// rec2020
// sRGB
srgb-linear
xyz
xyz-d50
xyz-d65

// color-contast()
color-contrast
vs
AA
AA-large
AAA
AAA-large

// color-mix()
color-mix
in

// prefers-default-appearance
prefers
// no-preference

// prefers-reduced-motion
reduce
no-preference

// prefers-contrast
more
less
// no-preference

// prefers-color-scheme, font-palette
light
dark

#if defined(ENABLE_DARK_MODE_CSS) && ENABLE_DARK_MODE_CSS
// color-scheme
only
// light
// dark
#endif

// auto-repeat
auto-fill
auto-fit

// font-display
// auto
// block
swap
fallback
optional

#if defined(ENABLE_APPLICATION_MANIFEST) && ENABLE_APPLICATION_MANIFEST
fullscreen
standalone
minimal-ui
browser
#endif

// text-decoration-thickness, text-underline-offset
from-font

// dynamic-range
standard
high

// @counter-style `system` descriptor values
// https://www.w3.org/TR/css-counter-styles-3/#counter-style-system
cyclic
numeric
// alphabetic
symbolic
additive
// fixed
extends

// @counter-style `speak-as` descriptor values
// https://www.w3.org/TR/css-counter-styles-3/#counter-style-speak-as
// auto
bullets
numbers
words
// spell-out

// @supports selector()
// https://drafts.csswg.org/css-conditional-4/#typedef-supports-selector-fn
selector

// math-style
// normal
compact

// mask-type, mask-mode
// alpha
// luminance
match-source

// rotate
x
y
z

// contain
// none
// strict
// content
size
layout
#if !(defined(ENABLE_CSS_PAINTING_API) && ENABLE_CSS_PAINTING_API)
paint
#endif

// offset-path
// https://drafts.fxtf.org/motion-1/#offset-path-property
ray
// closest-side
// closest-corner
// farthest-side
// farthest-corner
sides
// contain