functions.json

{
  "anchor()": {
    "syntax": "anchor( <anchor-name>? && <anchor-side>, <length-percentage>? )",
    "groups": [
      "CSS Positioning"
    ],
    "status": "experimental",
    "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/anchor"
  },
  "anchor-size()": {
    "syntax": "anchor-size( [ <anchor-name> || <anchor-size> ]? , <length-percentage>? )",
    "groups": [
      "CSS Positioning"
    ],
    "status": "experimental",
    "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/anchor-size"
  },
  "attr()": {
    "syntax": "attr( <attr-name> <type-or-unit>? [, <attr-fallback> ]? )",
    "groups": [
      "CSS Generated Content"
    ],
    "status": "standard",
    "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/attr"
  },
  "blur()": {
    "syntax": "blur( <length> )",
    "groups": [
      "Filter Effects"
    ],
    "status": "standard",
    "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/filter-function/blur"
  },
  "brightness()": {
    "syntax": "brightness( <number-percentage> )",
    "groups": [
      "Filter Effects"
    ],
    "status": "standard",
    "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/filter-function/brightness"
  },
  "calc()": {
    "syntax": "calc( <calc-sum> )",
    "groups": [
      "CSS Units",
      "CSS Lengths"
    ],
    "status": "standard",
    "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/calc"
  },
  "circle()": {
    "syntax": "circle( [ <shape-radius> ]? [ at <position> ]? )",
    "groups": [
      "CSS Shapes"
    ],
    "status": "standard",
    "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/basic-shape/circle"
  },
  "clamp()": {
    "syntax": "clamp( <calc-sum>#{3} )",
    "groups": [
      "CSS Fonts"
    ],
    "status": "standard",
    "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/clamp"
  },
  "conic-gradient()": {
    "syntax": "conic-gradient( [ from <angle> ]? [ at <position> ]?, <angular-color-stop-list> )",
    "groups": [
      "CSS Backgrounds and Borders",
      "CSS Color"
    ],
    "status": "standard",
    "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/gradient/conic-gradient"
  },
  "contrast()": {
    "syntax": "contrast( [ <number-percentage> ] )",
    "groups": [
      "Filter Effects",
      "CSS Color"
    ],
    "status": "standard",
    "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/filter-function/contrast"
  },
  "counter()": {
    "syntax": "counter( <custom-ident>, <counter-style>? )",
    "groups": [
      "CSS Lists and Counters"
    ],
    "status": "standard",
    "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/counter"
  },
  "counters()": {
    "syntax": "counters( <custom-ident>, <string>, <counter-style>? )",
    "groups": [
      "CSS Lists and Counters"
    ],
    "status": "standard",
    "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/counters"
  },
  "cross-fade()": {
    "syntax": "cross-fade( <cf-mixing-image> , <cf-final-image>? )",
    "groups": [
      "Filter Effects",
      "CSS Color"
    ],
    "status": "standard",
    "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/cross-fade"
  },
  "drop-shadow()": {
    "syntax": "drop-shadow( <length>{2,3} <color>? )",
    "groups": [
      "Filter Effects",
      "CSS Color"
    ],
    "status": "standard",
    "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/filter-function/drop-shadow"
  },
  "element()": {
    "syntax": "element( <id-selector> )",
    "groups": [
      "CSS Miscellaneous"
    ],
    "status": "experimental",
    "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/element"
  },
  "ellipse()": {
    "syntax": "ellipse( [ <shape-radius>{2} ]? [ at <position> ]? )",
    "groups": [
      "CSS Shapes"
    ],
    "status": "standard",
    "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/basic-shape/ellipse"
  },
  "env()": {
    "syntax": "env( <custom-ident> , <declaration-value>? )",
    "groups": [
      "CSS Box Model"
    ],
    "status": "standard",
    "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/env"
  },
  "fit-content()": {
    "syntax": "fit-content( [ <length> | <percentage> ] )",
    "groups": [
      "CSS Box Model"
    ],
    "status": "standard",
    "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/fit-content"
  },
  "grayscale()": {
    "syntax": "grayscale( <number-percentage> )",
    "groups": [
      "Filter Effects",
      "CSS Color"
    ],
    "status": "standard",
    "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/filter-function/grayscale"
  },
  "hsl()": {
    "syntax": "hsl( <hue> <percentage> <percentage> [ / <alpha-value> ]? ) | hsl( <hue>, <percentage>, <percentage>, <alpha-value>? )",
    "groups": [
      "CSS Color"
    ],
    "status": "standard",
    "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/color_value/hsl"
  },
  "hsla()": {
    "syntax": "hsla( <hue> <percentage> <percentage> [ / <alpha-value> ]? ) | hsla( <hue>, <percentage>, <percentage>, <alpha-value>? )",
    "groups": [
      "CSS Color"
    ],
    "status": "nonstandard",
    "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/color_value/hsla"
  },
  "hue-rotate()": {
    "syntax": "hue-rotate( <angle> )",
    "groups": [
      "Filter Effects",
      "CSS Color"
    ],
    "status": "standard",
    "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/filter-function/hue-rotate"
  },
  "image()": {
    "syntax": "image( <image-tags>? [ <image-src>? , <color>? ]! )",
    "groups": [
      "CSS Images"
    ],
    "status": "standard",
    "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/image/image"
  },
  "image-set()": {
    "syntax": "image-set( <image-set-option># )",
    "groups": [
      "CSS Images"
    ],
    "status": "standard",
    "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/image/image-set"
  },
  "inset()": {
    "syntax": "inset( <length-percentage>{1,4} [ round <'border-radius'> ]? )",
    "groups": [
      "CSS Shapes"
    ],
    "status": "standard",
    "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/basic-shape/inset"
  },
  "invert()": {
    "syntax": "invert( <number-percentage> )",
    "groups": [
      "Filter Effects",
      "CSS Color"
    ],
    "status": "standard",
    "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/filter-function/invert"
  },
  "leader()": {
    "syntax": "leader( <leader-type> )",
    "groups": [
      "CSS Miscellaneous"
    ],
    "status": "nonstandard"
  },
  "linear-gradient()": {
    "syntax": "linear-gradient( [ <angle> | to <side-or-corner> ]? , <color-stop-list> )",
    "groups": [
      "CSS Backgrounds and Borders",
      "CSS Color"
    ],
    "status": "standard",
    "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/gradient/linear-gradient"
  },
  "matrix()": {
    "syntax": "matrix( <number>#{6} )",
    "groups": [
      "CSS Transforms"
    ],
    "status": "standard",
    "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/transform-function/matrix"
  },
  "matrix3d()": {
    "syntax": "matrix3d( <number>#{16} )",
    "groups": [
      "CSS Transforms"
    ],
    "status": "standard",
    "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/transform-function/matrix3d"
  },
  "max()": {
    "syntax": "max( <calc-sum># )",
    "groups": [
      "CSS Units",
      "CSS Lengths"
    ],
    "status": "standard",
    "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/max"
  },
  "min()": {
    "syntax": "min( <calc-sum># )",
    "groups": [
      "CSS Units",
      "CSS Lengths"
    ],
    "status": "standard",
    "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/min"
  },
  "minmax()": {
    "syntax": "minmax( [ <length> | <percentage> | min-content | max-content | auto ] , [ <length> | <percentage> | <flex> | min-content | max-content | auto ] )",
    "groups": [
      "CSS Units",
      "CSS Lengths"
    ],
    "status": "standard",
    "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/minmax"
  },
  "oklab()": {
    "syntax": "oklab( [ <percentage> | <number> | none] [ <percentage> | <number> | none] [ <percentage> | <number> | none] [ / [<alpha-value> | none] ]? )",
    "groups": [
      "CSS Color"
    ],
    "status": "standard",
    "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/color_value/oklab"
  },
  "oklch()": {
    "syntax": "oklch( [ <percentage> | <number> | none] [ <percentage> | <number> | none] [ <hue> | none] [ / [<alpha-value> | none] ]? )",
    "groups": [
      "CSS Color"
    ],
    "status": "standard",
    "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/color_value/oklch"
  },
  "opacity()": {
    "syntax": "opacity( [ <number-percentage> ] )",
    "groups": [
      "Filter Effects",
      "CSS Color"
    ],
    "status": "standard",
    "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/filter-function/opacity"
  },
  "path()": {
    "syntax": "path( [ <fill-rule>, ]? <string> )",
    "groups": [
      "CSS Shapes",
      "CSS Motion Path"
    ],
    "status": "standard",
    "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/basic-shape/path"
  },
  "paint()": {
    "syntax": "paint( <ident>, <declaration-value>? )",
    "groups": [
      "CSS Backgrounds and Borders"
    ],
    "status": "standard",
    "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/image/paint"
  },
  "palette-mix()": {
    "syntax": "palette-mix(<color-interpolation-method> , [ [normal | light | dark | <palette-identifier> | <palette-mix()> ] && <percentage [0,100]>? ]#{2})",
    "groups": [
      "CSS Fonts"
    ],
    "status": "standard",
    "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/font-palette/palette-mix"
  },
  "perspective()": {
    "syntax": "perspective( <length> )",
    "groups": [
      "CSS Transforms"
    ],
    "status": "standard",
    "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/transform-function/perspective"
  },
  "polygon()": {
    "syntax": "polygon( <fill-rule>? , [ <length-percentage> <length-percentage> ]# )",
    "groups": [
      "CSS Shapes"
    ],
    "status": "standard",
    "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/basic-shape/polygon"
  },
  "radial-gradient()": {
    "syntax": "radial-gradient( [ <ending-shape> || <size> ]? [ at <position> ]? , <color-stop-list> )",
    "groups": [
      "CSS Backgrounds and Borders",
      "CSS Color"
    ],
    "status": "standard",
    "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/gradient/radial-gradient"
  },
  "ray()": {
    "syntax": "ray( <angle> && <ray-size>? && contain? && [at <position>]? )",
    "groups": [
      "CSS Motion Path"
    ],
    "status": "standard",
    "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/ray"
  },
  "repeating-linear-gradient()": {
    "syntax": "repeating-linear-gradient( [ <angle> | to <side-or-corner> ]? , <color-stop-list> )",
    "groups": [
      "CSS Backgrounds and Borders",
      "CSS Color"
    ],
    "status": "standard",
    "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/repeating-linear-gradient"
  },
  "repeating-radial-gradient()": {
    "syntax": "repeating-radial-gradient( [ <ending-shape> || <size> ]? [ at <position> ]? , <color-stop-list> )",
    "groups": [
      "CSS Backgrounds and Borders",
      "CSS Color"
    ],
    "status": "standard",
    "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/gradient/repeating-linear-gradient"
  },
  "rgb()": {
    "syntax": "rgb( <percentage>{3} [ / <alpha-value> ]? ) | rgb( <number>{3} [ / <alpha-value> ]? ) | rgb( <percentage>#{3} , <alpha-value>? ) | rgb( <number>#{3} , <alpha-value>? )",
    "groups": [
      "CSS Color"
    ],
    "status": "standard",
    "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/color_value/rgb"
  },
  "rgba()": {
    "syntax": "rgba( <percentage>{3} [ / <alpha-value> ]? ) | rgba( <number>{3} [ / <alpha-value> ]? ) | rgba( <percentage>#{3} , <alpha-value>? ) | rgba( <number>#{3} , <alpha-value>? )",
    "groups": [
      "CSS Color"
    ],
    "status": "nonstandard",
    "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/color_value/rgba"
  },
  "rotate()": {
    "syntax": "rotate( [ <angle> | <zero> ] )",
    "groups": [
      "CSS Transforms"
    ],
    "status": "standard",
    "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/transform-function/rotate"
  },
  "rotate3d()": {
    "syntax": "rotate3d( <number> , <number> , <number> , [ <angle> | <zero> ] )",
    "groups": [
      "CSS Transforms"
    ],
    "status": "standard",
    "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/transform-function/rotate3d"
  },
  "rotateX()": {
    "syntax": "rotateX( [ <angle> | <zero> ] )",
    "groups": [
      "CSS Transforms"
    ],
    "status": "standard",
    "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/transform-function/rotateX"
  },
  "rotateY()": {
    "syntax": "rotateY( [ <angle> | <zero> ] )",
    "groups": [
      "CSS Transforms"
    ],
    "status": "standard",
    "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/transform-function/rotateY"
  },
  "rotateZ()": {
    "syntax": "rotateZ( [ <angle> | <zero> ] )",
    "groups": [
      "CSS Transforms"
    ],
    "status": "standard",
    "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/transform-function/rotateZ"
  },
  "saturate()": {
    "syntax": "saturate( <number-percentage> )",
    "groups": [
      "Filter Effects",
      "CSS Color"
    ],
    "status": "standard",
    "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/filter-function/saturate"
  },
  "scale()": {
    "syntax": "scale( <number> , <number>? )",
    "groups": [
      "CSS Transforms"
    ],
    "status": "standard",
    "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/transform-function/scale"
  },
  "scale3d()": {
    "syntax": "scale3d( <number> , <number> , <number> )",
    "groups": [
      "CSS Transforms"
    ],
    "status": "standard",
    "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/transform-function/scale3d"
  },
  "scaleX()": {
    "syntax": "scaleX( <number> )",
    "groups": [
      "CSS Transforms"
    ],
    "status": "standard",
    "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/transform-function/scaleX"
  },
  "scaleY()": {
    "syntax": "scaleY( <number> )",
    "groups": [
      "CSS Transforms"
    ],
    "status": "standard",
    "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/transform-function/scaleY"
  },
  "scaleZ()": {
    "syntax": "scaleZ( <number> )",
    "groups": [
      "CSS Transforms"
    ],
    "status": "standard",
    "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/transform-function/scaleZ"
  },
  "scroll()": {
    "syntax": "scroll([<axis> || <scroller>]?)",
    "groups": [
      "CSS Animations"
    ],
    "status": "experimental",
    "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/animation-timeline/scroll"
  },
  "skew()": {
    "syntax": "skew( [ <angle> | <zero> ] , [ <angle> | <zero> ]? )",
    "groups": [
      "CSS Transforms"
    ],
    "status": "standard",
    "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/transform-function/skew"
  },
  "skewX()": {
    "syntax": "skewX( [ <angle> | <zero> ] )",
    "groups": [
      "CSS Transforms"
    ],
    "status": "standard",
    "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/transform-function/skewX"
  },
  "skewY()": {
    "syntax": "skewY( [ <angle> | <zero> ] )",
    "groups": [
      "CSS Transforms"
    ],
    "status": "standard",
    "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/transform-function/skewY"
  },
  "sepia()": {
    "syntax": "sepia( <number-percentage> )",
    "groups": [
      "Filter Effects",
      "CSS Color"
    ],
    "status": "standard",
    "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/filter-function/sepia"
  },
  "target-counter()": {
    "syntax": "target-counter( [ <string> | <url> ] , <custom-ident> , <counter-style>? )",
    "groups": [
      "CSS Lists and Counters"
    ],
    "status": "nonstandard"
  },
  "target-counters()": {
    "syntax": "target-counters( [ <string> | <url> ] , <custom-ident> , <string> , <counter-style>? )",
    "groups": [
      "CSS Lists and Counters"
    ],
    "status": "nonstandard"
  },
  "target-text()": {
    "syntax": "target-text( [ <string> | <url> ] , [ content | before | after | first-letter ]? )",
    "groups": [
      "CSS Miscellaneous"
    ],
    "status": "nonstandard"
  },
  "translate()": {
    "syntax": "translate( <length-percentage> , <length-percentage>? )",
    "groups": [
      "CSS Transforms"
    ],
    "status": "standard",
    "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/transform-function/translate"
  },
  "translate3d()": {
    "syntax": "translate3d( <length-percentage> , <length-percentage> , <length> )",
    "groups": [
      "CSS Transforms"
    ],
    "status": "standard",
    "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/transform-function/translate3d"
  },
  "translateX()": {
    "syntax": "translateX( <length-percentage> )",
    "groups": [
      "CSS Transforms"
    ],
    "status": "standard",
    "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/transform-function/translateX"
  },
  "translateY()": {
    "syntax": "translateY( <length-percentage> )",
    "groups": [
      "CSS Transforms"
    ],
    "status": "standard",
    "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/transform-function/translateY"
  },
  "translateZ()": {
    "syntax": "translateZ( <length> )",
    "groups": [
      "CSS Transforms"
    ],
    "status": "standard",
    "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/transform-function/translateZ"
  },
  "var()": {
    "syntax": "var( <custom-property-name> , <declaration-value>? )",
    "groups": [
      "CSS Miscellaneous"
    ],
    "status": "standard",
    "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/var"
  },
  "view()": {
    "syntax": "view([<axis> || <'view-timeline-inset'>]?)",
    "groups": [
      "CSS Animations"
    ],
    "status": "experimental",
    "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/animation-timeline/view"
  }
}