{
// The mode argument is used to limit the keyword to be used only for certain
// CSSParserModes. Values that have the prefix -internal- are only allowed by
// CSSParserModes listed in CSSValueKeywordsWriter, which feeds the generated
// code for isValueAllowedInMode.
parameters: {
mode: {},
},
//
// CSS value names
//
data: [
"inherit",
"initial",
//
// outline-style
// border-top-style
// border-bottom-style
// border-left-style
// border-right-style
// The order here must match the order of the EBorderStyle enum in ComputedStyleConstants.h.
"none",
"hidden",
"inset",
"groove",
"outset",
"ridge",
"dotted",
"dashed",
"solid",
"double",
//
// font
//
"caption",
"icon",
"menu",
"message-box",
"small-caption",
"-webkit-mini-control",
"-webkit-small-control",
"-webkit-control",
"status-bar",
//
// font-style
//
//normal
"italic",
"oblique",
// The following is only allowed in @font-face:
"all",
// font-variant-ligatures:
//
// normal
"common-ligatures",
"no-common-ligatures",
"discretionary-ligatures",
"no-discretionary-ligatures",
"historical-ligatures",
"no-historical-ligatures",
"contextual",
"no-contextual",
// font-variant-caps:
//
// normal
"small-caps",
"all-small-caps",
"petite-caps",
"all-petite-caps",
"unicase",
"titling-caps",
// font-variant-caps:
//
// normal
"jis78",
"jis83",
"jis90",
"jis04",
"simplified",
"traditional",
"full-width",
"proportional-width",
"ruby",
// font-variant-numeric
// normal
"lining-nums",
"oldstyle-nums",
"proportional-nums",
"tabular-nums",
"diagonal-fractions",
"stacked-fractions",
"ordinal",
"slashed-zero",
// font-variant-alternates
"stylistic",
"historical-forms",
"styleset",
"character-variant",
"swash",
"ornaments",
"annotation",
//
// font-weight
//
"normal",
"bold",
"bolder",
"lighter",
// font-synthesis
// none
// style
// small-caps
"weight",
//
// font-stretch
//
"ultra-condensed",
"extra-condensed",
"condensed",
"semi-condensed",
"semi-expanded",
"expanded",
"extra-expanded",
"ultra-expanded",
//
// font-size
//
"xx-small",
"x-small",
"small",
"medium",
"large",
"x-large",
"xx-large",
"xxx-large",
"smaller",
"larger",
"-webkit-xxx-large",
// math
//
// font-size-adjust
//
//none
"ex-height",
"cap-height",
"ch-width",
"ic-width",
"ic-height",
// from-font
//
// font-family (<generic-family> in CSS 2.1)
//
// If you modify this list, please make sure you update css_parsing_utils's
// ConsumeGenericFamily, ComputedStyleUtils::IdentifierForFamily and
// FontFamily::InferredTypeFor accordingly.
"serif",
"sans-serif",
"cursive",
"fantasy",
"monospace",
"system-ui",
"-webkit-body",
"math",
//
// font-display
//
//auto
//block
"swap",
"fallback",
"optional",
// https://drafts.csswg.org/css-conditional-5/#typedef-supports-font-tech-fn
"font-tech",
"font-format",
//
// font-variant-emoji
// normal
// text
"emoji",
"unicode",
//
// font-palette animation
//
"palette-mix",
//
// *-color
//
"aqua",
"black",
"blue",
"fuchsia",
"gray",
"green",
"lime",
"maroon",
"navy",
"olive",
"orange",
"purple",
"red",
"silver",
"teal",
"white",
"yellow",
"transparent",
"-webkit-link",
"-webkit-activelink",
"accentcolor",
"accentcolortext",
"activeborder",
"activecaption",
"activetext",
"appworkspace",
"background",
"buttonborder",
"buttonface",
"buttonhighlight",
"buttonshadow",
"buttontext",
"canvas",
"canvastext",
"captiontext",
"field",
"fieldtext",
"graytext",
"highlight",
"highlighttext",
"inactiveborder",
"inactivecaption",
"inactivecaptiontext",
"infobackground",
"infotext",
"linktext",
"mark",
"marktext",
"menutext",
"selecteditem",
"selecteditemtext",
"scrollbar",
"threeddarkshadow",
"threedface",
"threedhighlight",
"threedlightshadow",
"threedshadow",
"visitedtext",
"window",
"windowframe",
"windowtext",
"-internal-active-list-box-selection",
"-internal-active-list-box-selection-text",
"-internal-inactive-list-box-selection",
"-internal-inactive-list-box-selection-text",
{
name: "-webkit-focus-ring-color",
mode: "QuirksOrUASheet",
},
"currentcolor",
"grey",
//
// Value used to implement the behavior in:
// https://quirks.spec.whatwg.org/#the-tables-inherit-color-from-body-quirk
"-internal-quirk-inherit",
//
// css-text-decor
// <https://github.com/w3c/csswg-drafts/issues/7522>
"-internal-spelling-error-color",
"-internal-grammar-error-color",
// ::search-text
// <https://github.com/w3c/csswg-drafts/issues/10329>
"-internal-search-color",
"-internal-search-text-color",
"-internal-current-search-color",
"-internal-current-search-text-color",
//
// "Extended" named colors
//
"aliceblue",
"antiquewhite",
"aquamarine",
"azure",
"beige",
"bisque",
"blanchedalmond",
"blueviolet",
"brown",
"burlywood",
"cadetblue",
"chartreuse",
"chocolate",
"coral",
"cornflowerblue",
"cornsilk",
"crimson",
"cyan",
"darkblue",
"darkcyan",
"darkgoldenrod",
"darkgray",
"darkgreen",
"darkgrey",
"darkkhaki",
"darkmagenta",
"darkolivegreen",
"darkorange",
"darkorchid",
"darkred",
"darksalmon",
"darkseagreen",
"darkslateblue",
"darkslategray",
"darkslategrey",
"darkturquoise",
"darkviolet",
"deeppink",
"deepskyblue",
"dimgray",
"dimgrey",
"dodgerblue",
"firebrick",
"floralwhite",
"forestgreen",
"gainsboro",
"ghostwhite",
"gold",
"goldenrod",
"greenyellow",
"honeydew",
"hotpink",
"indianred",
"indigo",
"ivory",
"khaki",
"lavender",
"lavenderblush",
"lawngreen",
"lemonchiffon",
"lightblue",
"lightcoral",
"lightcyan",
"lightgoldenrodyellow",
"lightgray",
"lightgreen",
"lightgrey",
"lightpink",
"lightsalmon",
"lightseagreen",
"lightskyblue",
"lightslategray",
"lightslategrey",
"lightsteelblue",
"lightyellow",
"limegreen",
"linen",
"magenta",
"mediumaquamarine",
"mediumblue",
"mediumorchid",
"mediumpurple",
"mediumseagreen",
"mediumslateblue",
"mediumspringgreen",
"mediumturquoise",
"mediumvioletred",
"midnightblue",
"mintcream",
"mistyrose",
"moccasin",
"navajowhite",
"oldlace",
"olivedrab",
"orangered",
"orchid",
"palegoldenrod",
"palegreen",
"paleturquoise",
"palevioletred",
"papayawhip",
"peachpuff",
"peru",
"pink",
"plum",
"powderblue",
"rebeccapurple",
"rosybrown",
"royalblue",
"saddlebrown",
"salmon",
"sandybrown",
"seagreen",
"seashell",
"sienna",
"skyblue",
"slateblue",
"slategray",
"slategrey",
"snow",
"springgreen",
"steelblue",
"tan",
"thistle",
"tomato",
"turquoise",
"violet",
"wheat",
"whitesmoke",
"yellowgreen",
//
// background-repeat
//
"repeat",
"repeat-x",
"repeat-y",
"no-repeat",
// round
// space
//
// -webkit-mask-composite
//
"clear",
"copy",
"source-over",
"source-in",
"source-out",
"source-atop",
"destination-over",
"destination-in",
"destination-out",
"destination-atop",
"xor",
// highlight
"plus-lighter",
//
// mask-composite
//
// "add",
"subtract",
"intersect",
"exclude",
//
// vertical-align
//
"baseline",
"middle",
"sub",
"super",
"text-top",
"text-bottom",
"top",
"bottom",
// HTML alignment MIDDLE has no corresponding CSS alignment
"-webkit-baseline-middle",
//
// text-align
// The order and contents this block MUST match the kTextAlign[Last] cases
// of CSSParserFastPaths::IsValidKeywordPropertyAndValue().
//
"-webkit-auto",
"left",
"right",
"center",
"justify",
"-webkit-left",
"-webkit-right",
"-webkit-center",
"-webkit-match-parent",
"-internal-center",
//
// float, clear, etc.
//
"inline-start",
"inline-end",
//
// list-style-position
//
"outside",
"inside",
//
// list-style-type
//
"disc",
"circle",
"square",
"disclosure-open",
"disclosure-closed",
"decimal",
//none
//
// The order must match the order found in IsDisplayOutside().
"inline",
"block",
// The order must match the order found in IsDisplayInside().
"flow-root",
"flow",
"table",
"flex",
"grid",
"masonry",
//"math",
//"ruby",
// The order must match the order found in IsDisplayBox().
"contents",
//none
// The order must match the order found in IsDisplayInternal().
"table-row-group",
"table-header-group",
"table-footer-group",
"table-row",
"table-column-group",
"table-column",
"table-cell",
"table-caption",
"ruby-text",
// The order must match the order found in IsDisplayLegacy().
"inline-block",
"inline-table",
"inline-flex",
"inline-grid",
"inline-masonry",
"-webkit-box",
"-webkit-inline-box",
"-webkit-flex",
"-webkit-inline-flex",
"layout",
"inline-layout",
"list-item",
//
// cursor
// The order of this enum must match the order found in CSSPropertyParser::ConsumeCursor().
//
"auto",
"crosshair",
"default",
"pointer",
"move",
"vertical-text",
"cell",
"context-menu",
"alias",
// copy
"progress",
"no-drop",
"not-allowed",
"zoom-in",
"zoom-out",
"e-resize",
"ne-resize",
"nw-resize",
"n-resize",
"se-resize",
"sw-resize",
"s-resize",
"w-resize",
"ew-resize",
"ns-resize",
"nesw-resize",
"nwse-resize",
"col-resize",
"row-resize",
"text",
"wait",
"help",
"all-scroll",
"grab",
"grabbing",
"-webkit-grab",
"-webkit-grabbing",
"-webkit-zoom-in",
"-webkit-zoom-out",
// none
//
// direction
//
"ltr",
"rtl",
//
// text-transform
//
"capitalize",
"uppercase",
"lowercase",
//none
"math-auto",
//
// visibility
//
"visible",
//hidden
"collapse",
//
// white-space and its longhands (white-space-collapse and text-wrap)
// https://w3c.github.io/csswg-drafts/css-text-4/#white-space-property
//
"preserve",
"preserve-breaks",
"pretty",
//
// Unordered rest
//
"a3",
"a4",
"a5",
"above",
"absolute",
"always",
"avoid",
"b4",
"b5",
"below",
"bidi-override",
"blink",
"both",
"break-spaces",
"close-quote",
"embed",
"fixed",
"hand",
"hide",
"isolate",
"isolate-override",
"plaintext",
"-webkit-isolate",
"-webkit-isolate-override",
"-webkit-plaintext",
"jis-b5",
"jis-b4",
"landscape",
"ledger",
"legal",
"letter",
"line-through",
"local",
"no-close-quote",
"no-open-quote",
"nowrap",
"open-quote",
"overlay",
"overline",
"portrait",
"pre",
"pre-line",
"pre-wrap",
"relative",
"scroll",
"separate",
"show",
"static",
"thick",
"thin",
"underline",
"view",
"wavy",
// math-shift
// normal
"compact",
// math-style
// normal
// compact
// CSS3 Values
// box-align
"stretch",
"start",
"end",
//center
//baseline
// box-decoration-break
"clone",
"slice",
// box-direction
// normal
"reverse",
// box-orient
"horizontal",
"vertical",
"inline-axis",
"block-axis",
// box-pack
// start
// end
// center
// justify
// align-content
// start
// end
"flex-start",
"flex-end",
// center
"space-between",
"space-around",
"space-evenly",
// stretch
"unsafe",
"safe",
// align-items / align-self
// flex-start
// flex-end
// center
// baseline
// last baseline,
// first baseline,
// stretch
"anchor-center",
// justify-content
// start
// end
// flex-start
// flex-end
// center
// space-between
// space-around
// space-evenly
// stretch
// unsafe
// safe
// flex-flow
"row",
"row-reverse",
"column",
"column-reverse",
// nowrap
"wrap",
"wrap-reverse",
// grid-auto-flow
"auto-flow",
"dense",
//
// -webkit-user-modify
//
"read-only",
"read-write",
"read-write-plaintext-only",
//
// -webkit-user-drag
//
"element",
//
// CSS3 intrinsic dimension keywords
//
"-webkit-min-content",
"-webkit-max-content",
"-webkit-fill-available",
"-webkit-fit-content",
"min-content",
"max-content",
"fit-content",
//
// text-autospace
//
// normal
"no-autospace",
//
// text-box-edge
//
// "auto"
// "alphabetic",
// "text"
//
// not implemented
// "ideographic",
// "ideographic-ink",
"cap",
"ex",
//
// text-box-trim
//
// "none"
"trim-both",
"trim-end",
"trim-start",
//
// text-overflow
//
"clip",
"ellipsis",
//
// text-decoration-line
//
"spelling-error",
"grammar-error",
//
// text-decoration-skip-ink
//
// auto
// none
//
// text-decoration-thickness
//
// auto
"from-font",
//
// text-spacing-trim
//
// normal
"space-all",
"space-first",
// "trim-start",
// text-underline-position
// auto
// "from-font",
// under
// left
// right
//
// word-break
//
"break-all",
"keep-all",
"auto-phrase",
//
// word-wrap
//
"break-word",
//
// nbsp-mode
//
"space",
//
// -webkit-line-break
//
// auto
"loose",
// normal
"strict",
"after-white-space",
"anywhere",
// hyphens
"manual",
// -webkit-appearance
"checkbox",
"radio",
"button",
"listbox",
"-internal-media-control",
"menulist",
"menulist-button",
"meter",
"progress-bar",
"searchfield",
"textfield",
"textarea",
// TODO(crbug/1426629) slider-vertical is a non-standard value. We are
// waiting for its usage to be lower before deprecating it.
"slider-vertical",
//
// border-image
//
// stretch
// repeat
"round",
// TODO(crbug.com/1511354): "base-select" is a temporary name for stylable
// <select>. It should be renamed when a standardized name is chosen.
"base-select",
"-internal-appearance-auto-base-select",
//
// background-clip/background-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",
// CSS 3 SHAPES
"margin-box",
// https://drafts.fxtf.org/css-masking/#valdef-mask-clip-no-clip
"no-clip",
//
// background-size
//
"contain",
"cover",
//
// -webkit-rtl-ordering
//
"logical",
"visual",
//
// animation-composition
//
"replace",
"accumulate",
//
// animation-direction
//
"alternate",
"alternate-reverse",
//
// animation-fill-mode
//
"forwards",
"backwards",
// both
//
// animation-iteration-count
"infinite",
//
// animation-play-state
//
"running",
"paused",
//
// transform-style
//
"flat",
"preserve-3d",
//
// transform-box
//
// border-box
"fill-box",
"view-box",
//
// transition-timing-function
// animation-timing-function
//
"ease",
"linear",
"ease-in",
"ease-out",
"ease-in-out",
"jump-both",
"jump-end",
"jump-none",
"jump-start",
"step-start",
"step-end",
"steps",
"frames",
"cubic-bezier",
//
// zoom
//
"document",
"reset",
//
// user-zoom
//
// fixed
"zoom",
//
// pointer-events
//
"visiblepainted",
"visiblefill",
"visiblestroke",
//visible
"painted",
"fill",
"stroke",
"bounding-box",
//all
//none
//
// speech
//
"spell-out",
"digits",
"literal-punctuation",
"no-punctuation",
//
// -webkit-font-smoothing
//
// auto
// none
"antialiased",
"subpixel-antialiased",
// text-rendering
//auto
"optimizespeed",
"optimizelegibility",
"geometricprecision",
// shape-rendering
//auto
//optimizespeed
//geometricprecision
"crispedges",
// -webkit-color-adjust
"economy",
"exact",
// -webkit-writing-mode
// SVG compatibility
"lr",
"rl",
"tb",
"lr-tb",
"rl-tb",
"tb-rl",
// Standard values from CSS3
"horizontal-tb",
"vertical-rl",
"vertical-lr",
"sideways-rl",
"sideways-lr",
// -webkit-ruby-position
"after",
"before",
// ruby-position
"inter-character",
// over
// under
// alternate
// text-emphasis-position
"over",
"under",
//right
//left
// -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
// text-orientation/-webkit-text-orientation
"mixed",
"sideways",
"sideways-right",
"upright",
"vertical-right",
// -webkit-font-feature-settings
"on",
"off",
// image-rendering
//auto
//optimizespeed
"optimizequality",
"pixelated",
"-webkit-optimize-contrast",
// image-orientation
"from-image",
// page-orientation
// upright
"rotate-left",
"rotate-right",
// shape-outside
"nonzero",
"evenodd",
"at",
// closest-side
// farthest-side
"alphabetic",
// (display-mode:) media feature
"borderless",
"fullscreen",
"standalone",
"minimal-ui",
"browser",
"window-controls-overlay",
"tabbed",
"picture-in-picture",
// (display-state:) media feature
// normal
// fullscreen
"minimized",
"maximized",
// (overflow-block:) media feature
"paged",
// (update:) media feature
"slow",
"fast",
// position
"sticky",
// (pointer:) media feature
// none
"coarse",
"fine",
// (hover:) media feature
// none
"on-demand",
"hover",
// blend modes
// normal
"multiply",
"screen",
// overlay
"darken",
"lighten",
"color-dodge",
"color-burn",
"hard-light",
"soft-light",
"difference",
"exclusion",
"hue",
"saturation",
"color",
"luminosity",
// object-fit
"scale-down",
// column-fill
"balance",
// -webkit-app-region
"drag",
"no-drag",
// grid-{column|row}-{start|end}
"span",
// grid-template-{columns|rows}
"minmax",
"subgrid",
// (scan:) media feature
"progressive",
"interlace",
//
// paint-order
//
// normal
// fill
// stroke
"markers",
// mask-type
"alpha",
"luminance",
// mask-mode
// alpha
// luminance
"match-source",
// color-interpolation / color-interpolation-filters
// auto
"srgb",
"linearrgb",
// stroke-linecap
"butt",
// round
// square
// stroke-linejoin
"miter",
// round
"bevel",
// alignment-baseline
// auto
// baseline
"before-edge",
"after-edge",
// middle
"central",
"text-before-edge",
"text-after-edge",
"ideographic",
"hanging",
"mathematical",
// dominant-baseline
// auto
"use-script",
"no-change",
"reset-size",
// buffered-rendering
// auto
// static
"dynamic",
// vector-effect
// none
"non-scaling-stroke",
//
// CSS3 viewport-length keywords
//
"-internal-extend-to-zoom",
// isolation
// auto
// isolate
// touch-action
"pan-x",
"pan-y",
"pan-left",
"pan-right",
"pan-up",
"pan-down",
"manipulation",
"pinch-zoom",
// justify-items / justify-self
// auto
// stretch
// baseline
"last-baseline",
"first-baseline",
"first",
"last",
// center
// start
// end
"self-start",
"self-end",
// flex-start
// flex-end
// left
// right
// unsafe
// safe
// anchor-center
"legacy",
// scroll-behavior
// auto
"smooth",
// will-change
// auto
// contents
"scroll-position",
// all
// initial
// inherit
"revert",
"revert-layer",
"unset",
// background-image, etc.
"linear-gradient",
"radial-gradient",
"conic-gradient",
"repeating-linear-gradient",
"repeating-radial-gradient",
"repeating-conic-gradient",
"paint",
"cross-fade",
"-webkit-cross-fade",
"-webkit-gradient",
"-webkit-linear-gradient",
"-webkit-radial-gradient",
"-webkit-repeating-linear-gradient",
"-webkit-repeating-radial-gradient",
"-webkit-image-set",
"image-set",
"type",
// deprecated gradients
// "from", now part of relative color syntax
"to",
"color-stop",
"radial",
// content
"attr",
"counter",
"counters",
// clip
"rect",
// shapes
"polygon",
// @font-face src
"format",
"collection",
"embedded-opentype",
"opentype",
"svg",
"truetype",
"woff",
"woff2",
"tech",
"features-opentype",
"features-aat",
"features-graphite",
"color-COLRv0",
"color-COLRv1",
"color-SVG",
"color-sbix",
"color-CBDT",
"variations",
"palettes",
"incremental",
// (-webkit-)filter
"invert",
"grayscale",
"sepia",
"saturate",
"hue-rotate",
"opacity",
"brightness",
"contrast",
"blur",
"drop-shadow",
"url",
// colors
"rgb",
"rgba",
"hsl",
"hsla",
"hwb",
"lab",
"oklab",
"lch",
"oklch",
// "color",
"light-dark",
// color spaces
// "srgb", included in color-interpolation
// "rec2020", included in color-gamut
"srgb-linear",
"display-p3",
"a98-rgb",
"prophoto-rgb",
"xyz",
"xyz-d50",
"xyz-d65",
// hue interpolation methods
"shorter",
"longer",
"decreasing",
"increasing",
// For gradient interpolations in certain color spaces
"in",
// The color-mix function https://www.w3.org/TR/css-color-5/#color-mix
"color-mix",
// relative color syntax
"from",
// RCS channel keywords.
// r, g, b for rgb(), rgba() and color()
// x, y, z are already defined for "scale"
// h, s, l for hsl()
// h, w, b for hwb()
// l, a, b for lab() and oklab()
// l, c, h for lch() and oklch()
"r",
"g",
"b",
"h",
"s",
"l",
"w",
"a",
"c",
// transform
"matrix",
"matrix3d",
"perspective",
"rotate",
"rotateX",
"rotateY",
"rotateZ",
"rotate3d",
"scale",
"scaleX",
"scaleY",
"scaleZ",
"scale3d",
"skew",
"skewX",
"skewY",
"translate",
"translateX",
"translateY",
"translateZ",
"translate3d",
// scale
"x",
"y",
"z",
// offset-path
"path",
"ray",
"sides",
// coord-box
"stroke-box",
// math functions
// https://drafts.csswg.org/css-values-4/#math
"calc",
"-webkit-calc",
"min",
"max",
"clamp",
// proposed math function
// https://github.com/w3c/csswg-drafts/issues/626
"calc-size",
// value that goes within calc-size()
"any",
// Trigonometic functions
"sin",
"cos",
// "tan" - already declared for color value
"asin",
"atan",
"atan2",
"acos",
// Stepped value functions
"mod",
"rem",
"up",
"down",
"to-zero",
// Sign related functions
"sign",
"abs",
// Exponential functions
"pow",
"sqrt",
"hypot",
"log",
"exp",
//<calc-constant>
//https://drafts.csswg.org/css-values/#calc-syntax
"infinity",
"-infinity",
"nan",
"pi",
"e",
// scroll-snap-type
// none
// x
// y
// block
// inline
// both
"mandatory",
"proximity",
// scroll-snap-align
// none
// start
// end
// center
// scroll-snap-stop
// normal
// always
// containment
// paint
"style",
// layout
"size",
"block-size",
"inline-size",
// @container
// size
// style
"scroll-state",
// top
// left
// right
// bottom
"inset-block-start",
"inset-block-end",
"inset-inline-start",
"inset-inline-end",
// grid auto-repeat
"auto-fill",
"auto-fit",
"var",
"-internal-variable-value",
"env",
// CSS Functions
"arg",
// break-before, break-after, break-inside
"avoid-page",
"page",
"recto",
"verso",
"avoid-column",
// color-gamut
// srgb
"p3",
"rec2020",
// math-depth
"add",
"auto-add",
// overscroll-behavior
// auto,
// contain
// none
//scroll-customization
// auto
// pan-x,
// pan-left,
// pan-right,
// pan-y,
// pan-up,
// pan-down
// none
// @property
"true",
"false",
// (prefers-*:) media features
"no-preference",
// (prefers-color-scheme:) media feature
"dark",
"light",
// color-scheme
"only",
// (prefers-reduced-motion:) media feature
// (prefers-reduced-data:) media feature
// (prefers-reduced-transparency:) media feature
"reduce",
// (forced-colors:) media feature
// none
"active",
// forced-color-adjust
// auto
// none
"preserve-parent-color",
// (navigation-controls) media feature
// none
"back-button",
// -internal-empty-line-height
// none
"fabricated",
// @supports selector(...)
// https://drafts.csswg.org/css-conditional-4/#typedef-supports-selector-fn
"selector",
// (device-posture) media feature
"continuous",
"folded",
// scrollbar-gutter
// auto
"stable",
"both-edges",
// (prefers-contrast:) media feature
// no-preference
"more",
"less",
"custom",
// @counter-style system
"cyclic",
// fixed,
"symbolic",
// alphabetic,
"numeric",
"additive",
"extends",
// Predefined counter styles that don't use the above systems
"-internal-simp-chinese-informal",
"-internal-simp-chinese-formal",
"-internal-trad-chinese-informal",
"-internal-trad-chinese-formal",
"-internal-korean-hangul-formal",
"-internal-korean-hanja-informal",
"-internal-korean-hanja-formal",
"-internal-hebrew",
"-internal-lower-armenian",
"-internal-upper-armenian",
"-internal-ethiopic-numeric",
// @counter-style range
// infinite,
// @counter-style speak-as
// auto
"bullets",
"numbers",
"words",
// ([video]-dynamic-range) media feature, and dynamic-range-limit property
"standard",
"high",
"constrained-high",
"dynamic-range-limit-mix",
// Layered @import rule
"layer",
// supports in import rule: @import supports()
"supports",
// color-contrast()
"color-contrast",
"vs",
"AA",
"AA-large",
"AAA",
"AAA-large",
// initial-letter
"drop",
"raise",
// basic-shape functions.
"xywh",
// anchor positioning
"anchor",
// top,
// left,
// right,
// bottom,
// start,
// end,
// self-start,
// self-end,
// center,
"anchor-size",
"width",
"height",
// block,
// inline,
"self-block",
"self-inline",
// position-anchor
// auto,
// none,
// animation-[end-]delay
// contain
// cover
"entry",
"exit",
"entry-crossing",
"exit-crossing",
// scroll()
"root",
"nearest",
"self",
// transition-behavior
"allow-discrete",
// (inverted-colors:) media feature
"inverted",
// none
// @view-transition navigation
// auto
// none
// container-type
// inline-size,
// normal,
// size,
// scroll-state,
// (scripting:) media feature
"enabled",
"initial-only",
// none
// position-area
// none,
// left,
// center,
// right,
"span-left",
"span-right",
"x-start",
"x-end",
"span-x-start",
"span-x-end",
"x-self-start",
"x-self-end",
"span-x-self-start",
"span-x-self-end",
"span-all",
// top,
// bottom,
"span-top",
"span-bottom",
"y-start",
"y-end",
"span-y-start",
"span-y-end",
"y-self-start",
"y-self-end",
"span-y-self-start",
"span-y-self-end",
"block-start",
"block-end",
"span-block-start",
"span-block-end",
"self-block-start",
"self-block-end",
"span-self-block-start",
"span-self-block-end",
// inline-start,
// inline-end,
"span-inline-start",
"span-inline-end",
"self-inline-start",
"self-inline-end",
"span-self-inline-start",
"span-self-inline-end",
// start,
// end,
"span-start",
"span-end",
// self-start,
// self-end,
"span-self-start",
"span-self-end",
// inset-area() (deprecated)
"position-area",
// resize
// none
// both
// horizontal
// vertical
// block
// inline
// auto (legacy version of -internal-textarea-auto)
"-internal-textarea-auto",
// position-try-order
// normal
"most-width",
"most-height",
"most-block-size",
"most-inline-size",
// position-try-fallbacks
// none
"flip-block",
"flip-inline",
"flip-start",
// position-visibility
// always
// TODO(crbug.com/332933527): Support anchors-valid.
// "anchors-valid",
"anchors-visible",
"no-overflow",
// reading-flow
// normal
"flex-visual",
"flex-flow",
"grid-rows",
"grid-columns",
"grid-order",
// fill / stroke
"context-fill",
"context-stroke",
// media-progress()
"media-progress",
// container-progress()
"container-progress",
"of",
// @supports blink-feature(RuntimeEnabledFeatureName)
"blink-feature",
// interpolate-size
"numeric-only",
"allow-keywords",
],
}
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