core/css/css_value_keywords.json5

{
  // 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 allowInternalPropertyAndValue()

  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-weigth
    //
    "normal",
    "bold",
    "bolder",
    "lighter",

    //
    // 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",

    //
    // font-family (<generic-family> in CSS 2.1)
    //
    "serif",
    "sans-serif",
    "cursive",
    "fantasy",
    "monospace",
    "-webkit-body",

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

    //
    //
    // *-color
    //
    "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",
    "canvas",
    "canvastext",
    "captiontext",
    "field",
    "fieldtext",
    "graytext",
    "highlight",
    "highlighttext",
    "inactiveborder",
    "inactivecaption",
    "inactivecaptiontext",
    "infobackground",
    "infotext",
    "linktext",
    "menutext",
    "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",
    //
    // 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",
    //
    // 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 of this enum must match the order found in CSSParserFastPaths::IsValidKeywordPropertyAndValue().
    //
    "-webkit-auto",
    "left",
    "right",
    "inline-start",
    "inline-end",
    "center",
    "justify",
    "-webkit-left",
    "-webkit-right",
    "-webkit-center",
    "-webkit-match-parent",
    "-internal-center",
    //
    // text-justify
    //
    //auto
    //none
    "inter-word",
    "distribute",
    //
    // list-style-position
    //
    "outside",
    "inside",
    //
    // list-style-type
    // The order of this enum must match the order found in CSSParserFastPaths::IsValidKeywordPropertyAndValue().
    //
    "disc",
    "circle",
    "square",
    "decimal",
    "decimal-leading-zero",
    "arabic-indic",
    "bengali",
    "cambodian",
    "khmer",
    "devanagari",
    "gujarati",
    "gurmukhi",
    "kannada",
    "lao",
    "malayalam",
    "mongolian",
    "myanmar",
    "oriya",
    "persian",
    "urdu",
    "telugu",
    "tibetan",
    "thai",
    "lower-roman",
    "upper-roman",
    "lower-greek",
    "lower-alpha",
    "lower-latin",
    "upper-alpha",
    "upper-latin",
    "cjk-earthly-branch",
    "cjk-heavenly-stem",
    "ethiopic-halehame",
    "ethiopic-halehame-am",
    "ethiopic-halehame-ti-er",
    "ethiopic-halehame-ti-et",
    "hangul",
    "hangul-consonant",
    "korean-hangul-formal",
    "korean-hanja-formal",
    "korean-hanja-informal",
    "hebrew",
    "armenian",
    "lower-armenian",
    "upper-armenian",
    "georgian",
    "cjk-ideographic",
    "simp-chinese-formal",
    "simp-chinese-informal",
    "trad-chinese-formal",
    "trad-chinese-informal",
    "hiragana",
    "katakana",
    "hiragana-iroha",
    "katakana-iroha",
    //none
    //
    // display
    // The order of this enum must match the order found in CSSParserFastPaths::IsValidKeywordPropertyAndValue().
    //
    "inline",
    "block",
    "flow-root",
    "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",
    "grid",
    "inline-grid",
    "math",
    "inline-math",
    "contents",
    //none
    "-webkit-flex",
    "-webkit-inline-flex",
    "layout",
    "inline-layout",
    //
    // 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
    //
    // visibility
    //
    "visible",
    //hidden
    "collapse",
    //
    // 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",
    "wavy",
    "-webkit-nowrap",

    //
    // math-style
    //
    // inline
    "display",

    // 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

    // 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-overflow
    //
    "clip",
    "ellipsis",

    //
    // text-decoration-skip-ink
    //
    // auto
    // none

    // text-underline-position
    // auto
    "from-font",
    // under
    // left
    // right

    //
    // word-break
    //
    "break-all",
    "keep-all",

    //
    // word-wrap
    //
    "break-word",

    //
    // nbsp-mode
    //
    "space",

    //
    // -webkit-line-break
    //
    // auto
    "loose",
    // normal
    "strict",
    "after-white-space",
    "anywhere",

    // hyphens
    "manual",

    // -webkit-appearance
    // The order here must match the order in the ControlPart enum in
    // theme_types.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",
    "inner-spin-button",
    "listbox",
    "media-slider",
    "media-sliderthumb",
    "media-volume-slider",
    "media-volume-sliderthumb",
    "-internal-media-control",
    "menulist",
    "menulist-button",
    "meter",
    "progress-bar",
    "slider-horizontal",
    "slider-vertical",
    "sliderthumb-horizontal",
    "sliderthumb-vertical",
    "searchfield",
    "searchfield-cancel-button",
    "textfield",
    "textarea",

    //
    // border-image
    //
    // stretch
    // repeat
    "round",

    //
    // 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",

    //
    // background-size
    //
    "contain",
    "cover",

    //
    // -webkit-rtl-ordering
    //
    "logical",
    "visual",

    //
    // 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",

    // -webkit-ruby-position
    "after",
    "before",

    // -webkit-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",

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

    "alphabetic",

    // (display-mode:) media feature
    "fullscreen",
    "standalone",
    "minimal-ui",
    "browser",

    // 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",

    // text-indent
    "each-line",
    //hanging   // hanging exists in SVGCSSValueKeywords.in

    // (scan:) media feature
    "progressive",
    "interlace",

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

    //
    // 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
    "legacy",

    // scroll-behavior
    // auto
    "smooth",

    // will-change
    // auto
    // contents
    "scroll-position",

    // all
    // initial
    // inherit
    "revert",
    "unset",

    // background-image, etc.
    "linear-gradient",
    "radial-gradient",
    "conic-gradient",
    "repeating-linear-gradient",
    "repeating-radial-gradient",
    "repeating-conic-gradient",
    "paint",
    "-webkit-cross-fade",
    "-webkit-gradient",
    "-webkit-linear-gradient",
    "-webkit-radial-gradient",
    "-webkit-repeating-linear-gradient",
    "-webkit-repeating-radial-gradient",
    "-webkit-image-set",

    // 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",

    // colors
    "rgb",
    "rgba",
    "hsl",
    "hsla",
    "-internal-light-dark-color",

    // 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",

    // math functions
    // https://drafts.csswg.org/css-values-4/#math
    "calc",
    "-webkit-calc",
    "min",
    "max",
    "clamp",

    // 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",

    // grid auto-repeat
    "auto-fill",
    "auto-fit",

    "var",
    "-internal-variable-value",
    "env",

    // break-before, break-after, break-inside
    "avoid-page",
    "page",
    "recto",
    "verso",
    "avoid-column",

    // shape
    // rect
    // round

    // color-gamut
    // srgb
    "p3",
    "rec2020",

    // 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
    "reduce",

    // (forced-colors:) media feature
    // none
    "active",

    // (navigation-controls) media feature
    // none
    "back-button",

    // subtree-visibility
    "hidden-matchable",

    // -internal-empty-line-height
    // none
    "fabricated",

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