From 76cb9c2a39d477a64824a985ade40507e3bbade1 Mon Sep 17 00:00:00 2001
From: Adam Mathes <adam@adammathes.com>
Date: Fri, 13 Feb 2026 21:34:48 -0800
Subject: feat(vanilla): add testing infrastructure and tests (NK-wjnczv)

---
 vanilla/node_modules/css-tree/data/patch.json | 982 ++++++++++++++++++++++++++
 1 file changed, 982 insertions(+)
 create mode 100644 vanilla/node_modules/css-tree/data/patch.json

(limited to 'vanilla/node_modules/css-tree/data')

diff --git a/vanilla/node_modules/css-tree/data/patch.json b/vanilla/node_modules/css-tree/data/patch.json
new file mode 100644
index 0000000..08c59a1
--- /dev/null
+++ b/vanilla/node_modules/css-tree/data/patch.json
@@ -0,0 +1,982 @@
+{
+    "atrules": {
+        "charset": {
+            "prelude": "<string>"
+        },
+        "container": {
+            "prelude": "[ <container-name> ]? <container-condition>"
+        },
+        "font-face": {
+            "descriptors": {
+                "unicode-range": {
+                    "comment": "replaces <unicode-range>, an old production name",
+                    "syntax": "<urange>#"
+                }
+            }
+        },
+        "nest": {
+            "prelude": "<complex-selector-list>"
+        },
+        "scope": {
+            "prelude": "[ ( <scope-start> ) ]? [ to ( <scope-end> ) ]?"
+        },
+        "position-try": {
+            "comment": "The list of descriptors: https://developer.mozilla.org/en-US/docs/Web/CSS/@position-try",
+            "descriptors": {
+                "top": "<'top'>",
+                "left": "<'left'>",
+                "bottom": "<'bottom'>",
+                "right": "<'right'>",
+                "inset-block-start": "<'inset-block-start'>",
+                "inset-block-end": "<'inset-block-end'>",
+                "inset-inline-start": "<'inset-inline-start'>",
+                "inset-inline-end": "<'inset-inline-end'>",
+                "inset-block": "<'inset-block'>",
+                "inset-inline": "<'inset-inline'>",
+                "inset": "<'inset'>",
+                "margin-top": "<'margin-top'>",
+                "margin-left": "<'margin-left'>",
+                "margin-bottom": "<'margin-bottom'>",
+                "margin-right": "<'margin-right'>",
+                "margin-block-start": "<'margin-block-start'>",
+                "margin-block-end": "<'margin-block-end'>",
+                "margin-inline-start": "<'margin-inline-start'>",
+                "margin-inline-end": "<'margin-inline-end'>",
+                "margin": "<'margin'>",
+                "margin-block": "<'margin-block'>",
+                "margin-inline": "<'margin-inline'>",
+                "width": "<'width'>",
+                "height": "<'height'>",
+                "min-width": "<'min-width'>",
+                "min-height": "<'min-height'>",
+                "max-width": "<'max-width'>",
+                "max-height": "<'max-height'>",
+                "block-size": "<'block-size'>",
+                "inline-size": "<'inline-size'>",
+                "min-block-size": "<'min-block-size'>",
+                "min-inline-size": "<'min-inline-size'>",
+                "max-block-size": "<'max-block-size'>",
+                "max-inline-size": "<'max-inline-size'>",
+                "align-self": "<'align-self'> | anchor-center",
+                "justify-self": "<'justify-self'> | anchor-center"
+            }
+        }
+    },
+    "properties": {
+        "-moz-background-clip": {
+            "comment": "deprecated syntax in old Firefox, https://developer.mozilla.org/en/docs/Web/CSS/background-clip",
+            "syntax": "padding | border"
+        },
+        "-moz-border-radius-bottomleft": {
+            "comment": "https://developer.mozilla.org/en-US/docs/Web/CSS/border-bottom-left-radius",
+            "syntax": "<'border-bottom-left-radius'>"
+        },
+        "-moz-border-radius-bottomright": {
+            "comment": "https://developer.mozilla.org/en-US/docs/Web/CSS/border-bottom-right-radius",
+            "syntax": "<'border-bottom-right-radius'>"
+        },
+        "-moz-border-radius-topleft": {
+            "comment": "https://developer.mozilla.org/en-US/docs/Web/CSS/border-top-left-radius",
+            "syntax": "<'border-top-left-radius'>"
+        },
+        "-moz-border-radius-topright": {
+            "comment": "https://developer.mozilla.org/en-US/docs/Web/CSS/border-bottom-right-radius",
+            "syntax": "<'border-bottom-right-radius'>"
+        },
+        "-moz-control-character-visibility": {
+            "comment": "firefox specific keywords, https://bugzilla.mozilla.org/show_bug.cgi?id=947588",
+            "syntax": "visible | hidden"
+        },
+        "-moz-osx-font-smoothing": {
+            "comment": "misssed old syntax https://developer.mozilla.org/en-US/docs/Web/CSS/font-smooth",
+            "syntax": "auto | grayscale"
+        },
+        "-moz-user-select": {
+            "comment": "https://developer.mozilla.org/en-US/docs/Web/CSS/user-select",
+            "syntax": "none | text | all | -moz-none"
+        },
+        "-ms-flex-align": {
+            "comment": "misssed old syntax implemented in IE, https://www.w3.org/TR/2012/WD-css3-flexbox-20120322/#flex-align",
+            "syntax": "start | end | center | baseline | stretch"
+        },
+        "-ms-flex-item-align": {
+            "comment": "misssed old syntax implemented in IE, https://www.w3.org/TR/2012/WD-css3-flexbox-20120322/#flex-align",
+            "syntax": "auto | start | end | center | baseline | stretch"
+        },
+        "-ms-flex-line-pack": {
+            "comment": "misssed old syntax implemented in IE, https://www.w3.org/TR/2012/WD-css3-flexbox-20120322/#flex-line-pack",
+            "syntax": "start | end | center | justify | distribute | stretch"
+        },
+        "-ms-flex-negative": {
+            "comment": "misssed old syntax implemented in IE; TODO: find references for comfirmation",
+            "syntax": "<'flex-shrink'>"
+        },
+        "-ms-flex-pack": {
+            "comment": "misssed old syntax implemented in IE, https://www.w3.org/TR/2012/WD-css3-flexbox-20120322/#flex-pack",
+            "syntax": "start | end | center | justify | distribute"
+        },
+        "-ms-flex-order": {
+            "comment": "misssed old syntax implemented in IE; https://msdn.microsoft.com/en-us/library/jj127303(v=vs.85).aspx",
+            "syntax": "<integer>"
+        },
+        "-ms-flex-positive": {
+            "comment": "misssed old syntax implemented in IE; TODO: find references for comfirmation",
+            "syntax": "<'flex-grow'>"
+        },
+        "-ms-flex-preferred-size": {
+            "comment": "misssed old syntax implemented in IE; TODO: find references for comfirmation",
+            "syntax": "<'flex-basis'>"
+        },
+        "-ms-interpolation-mode": {
+            "comment": "https://msdn.microsoft.com/en-us/library/ff521095(v=vs.85).aspx",
+            "syntax": "nearest-neighbor | bicubic"
+        },
+        "-ms-grid-column-align": {
+            "comment": "add this property first since it uses as fallback for flexbox, https://msdn.microsoft.com/en-us/library/windows/apps/hh466338.aspx",
+            "syntax": "start | end | center | stretch"
+        },
+        "-ms-grid-row-align": {
+            "comment": "add this property first since it uses as fallback for flexbox, https://msdn.microsoft.com/en-us/library/windows/apps/hh466348.aspx",
+            "syntax": "start | end | center | stretch"
+        },
+        "-ms-hyphenate-limit-last": {
+            "comment": "misssed old syntax implemented in IE; https://www.w3.org/TR/css-text-4/#hyphenate-line-limits",
+            "syntax": "none | always | column | page | spread"
+        },
+        "-webkit-appearance": {
+            "comment": "webkit specific keywords",
+            "references": [
+                "http://css-infos.net/property/-webkit-appearance"
+            ],
+            "syntax": "none | button | button-bevel | caps-lock-indicator | caret | checkbox | default-button | inner-spin-button | listbox | listitem | media-controls-background | media-controls-fullscreen-background | media-current-time-display | media-enter-fullscreen-button | media-exit-fullscreen-button | media-fullscreen-button | media-mute-button | media-overlay-play-button | media-play-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-sliderthumb | menulist | menulist-button | menulist-text | menulist-textfield | meter | progress-bar | progress-bar-value | push-button | radio | scrollbarbutton-down | scrollbarbutton-left | scrollbarbutton-right | scrollbarbutton-up | scrollbargripper-horizontal | scrollbargripper-vertical | scrollbarthumb-horizontal | scrollbarthumb-vertical | scrollbartrack-horizontal | scrollbartrack-vertical | searchfield | searchfield-cancel-button | searchfield-decoration | searchfield-results-button | searchfield-results-decoration | slider-horizontal | slider-vertical | sliderthumb-horizontal | sliderthumb-vertical | square-button | textarea | textfield | -apple-pay-button"
+        },
+        "-webkit-background-clip": {
+            "comment": "https://developer.mozilla.org/en/docs/Web/CSS/background-clip",
+            "syntax": "[ <box> | border | padding | content | text ]#"
+        },
+        "-webkit-column-break-after": {
+            "comment": "added, http://help.dottoro.com/lcrthhhv.php",
+            "syntax": "always | auto | avoid"
+        },
+        "-webkit-column-break-before": {
+            "comment": "added, http://help.dottoro.com/lcxquvkf.php",
+            "syntax": "always | auto | avoid"
+        },
+        "-webkit-column-break-inside": {
+            "comment": "added, http://help.dottoro.com/lclhnthl.php",
+            "syntax": "always | auto | avoid"
+        },
+        "-webkit-font-smoothing": {
+            "comment": "https://developer.mozilla.org/en-US/docs/Web/CSS/font-smooth",
+            "syntax": "auto | none | antialiased | subpixel-antialiased"
+        },
+        "-webkit-mask-box-image": {
+            "comment": "missed; https://developer.mozilla.org/en-US/docs/Web/CSS/-webkit-mask-box-image",
+            "syntax": "[ <url> | <gradient> | none ] [ <length-percentage>{4} <-webkit-mask-box-repeat>{2} ]?"
+        },
+        "-webkit-print-color-adjust": {
+            "comment": "missed",
+            "references": [
+                "https://developer.mozilla.org/en/docs/Web/CSS/-webkit-print-color-adjust"
+            ],
+            "syntax": "economy | exact"
+        },
+        "-webkit-text-security": {
+            "comment": "missed; http://help.dottoro.com/lcbkewgt.php",
+            "syntax": "none | circle | disc | square"
+        },
+        "-webkit-user-drag": {
+            "comment": "missed; http://help.dottoro.com/lcbixvwm.php",
+            "syntax": "none | element | auto"
+        },
+        "-webkit-user-select": {
+            "comment": "auto is supported by old webkit, https://developer.mozilla.org/en-US/docs/Web/CSS/user-select",
+            "syntax": "auto | none | text | all"
+        },
+        "alignment-baseline": {
+            "comment": "added SVG property",
+            "references": [
+                "https://www.w3.org/TR/SVG/text.html#AlignmentBaselineProperty"
+            ],
+            "syntax": "auto | baseline | before-edge | text-before-edge | middle | central | after-edge | text-after-edge | ideographic | alphabetic | hanging | mathematical"
+        },
+        "background-clip": {
+            "comment": "used <bg-clip> from CSS Backgrounds and Borders 4 since it adds new values",
+            "references": [
+                "https://github.com/csstree/csstree/issues/190"
+            ],
+            "syntax": "<bg-clip>#"
+        },
+        "baseline-shift": {
+            "comment": "added SVG property",
+            "references": [
+                "https://www.w3.org/TR/SVG/text.html#BaselineShiftProperty"
+            ],
+            "syntax": "baseline | sub | super | <svg-length>"
+        },
+        "behavior": {
+            "comment": "added old IE property https://msdn.microsoft.com/en-us/library/ms530723(v=vs.85).aspx",
+            "syntax": "<url>+"
+        },
+        "container-type": {
+            "comment": "https://www.w3.org/TR/css-contain-3/#propdef-container-type",
+            "syntax": "normal || [ size | inline-size ]"
+        },
+        "cue": {
+            "comment": "https://www.w3.org/TR/css3-speech/#property-index",
+            "syntax": "<'cue-before'> <'cue-after'>?"
+        },
+        "cue-after": {
+            "comment": "https://www.w3.org/TR/css3-speech/#property-index",
+            "syntax": "<url> <decibel>? | none"
+        },
+        "cue-before": {
+            "comment": "https://www.w3.org/TR/css3-speech/#property-index",
+            "syntax": "<url> <decibel>? | none"
+        },
+        "cursor": {
+            "comment": "added legacy keywords: hand, -webkit-grab. -webkit-grabbing, -webkit-zoom-in, -webkit-zoom-out, -moz-grab, -moz-grabbing, -moz-zoom-in, -moz-zoom-out",
+            "references": [
+                "https://www.sitepoint.com/css3-cursor-styles/"
+            ],
+            "syntax": "[ [ <url> [ <x> <y> ]? , ]* [ auto | default | none | context-menu | help | pointer | progress | wait | cell | crosshair | text | vertical-text | alias | copy | move | no-drop | not-allowed | 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 | grab | grabbing | hand | -webkit-grab | -webkit-grabbing | -webkit-zoom-in | -webkit-zoom-out | -moz-grab | -moz-grabbing | -moz-zoom-in | -moz-zoom-out ] ]"
+        },
+        "display": {
+            "comment": "extended with -ms-flexbox",
+            "syntax": "| <-non-standard-display>"
+        },
+        "position": {
+            "comment": "extended with -webkit-sticky",
+            "syntax": "| -webkit-sticky"
+        },
+        "dominant-baseline": {
+            "comment": "added SVG property",
+            "references": [
+                "https://www.w3.org/TR/SVG/text.html#DominantBaselineProperty"
+            ],
+            "syntax": "auto | use-script | no-change | reset-size | ideographic | alphabetic | hanging | mathematical | central | middle | text-after-edge | text-before-edge"
+        },
+        "image-rendering": {
+            "comment": "extended with <-non-standard-image-rendering>, added SVG keywords optimizeSpeed and optimizeQuality",
+            "references": [
+                "https://developer.mozilla.org/en/docs/Web/CSS/image-rendering",
+                "https://www.w3.org/TR/SVG/painting.html#ImageRenderingProperty"
+            ],
+            "syntax": "| optimizeSpeed | optimizeQuality | <-non-standard-image-rendering>"
+        },
+        "fill": {
+            "comment": "added SVG property",
+            "references": [
+                "https://www.w3.org/TR/SVG/painting.html#FillProperty"
+            ],
+            "syntax": "<paint>"
+        },
+        "fill-opacity": {
+            "comment": "added SVG property",
+            "references": [
+                "https://www.w3.org/TR/SVG/painting.html#FillProperty"
+            ],
+            "syntax": "<number-zero-one>"
+        },
+        "filter": {
+            "comment": "extend with IE legacy syntaxes",
+            "syntax": "| <-ms-filter-function-list>"
+        },
+        "font": {
+            "comment": "align with font-4, fix <'font-family'>#, add non standard fonts",
+            "references": [
+                "https://drafts.csswg.org/css-fonts-4/#font-prop",
+                "https://github.com/w3c/csswg-drafts/pull/10832",
+                "https://webkit.org/blog/3709/using-the-system-font-in-web-content/"
+            ],
+            "syntax": "[ [ <'font-style'> || <font-variant-css2> || <'font-weight'> || <font-width-css3> ]? <'font-size'> [ / <'line-height'> ]? <'font-family'># ] | <system-family-name> | <-non-standard-font>"
+        },
+        "glyph-orientation-horizontal": {
+            "comment": "added SVG property",
+            "references": [
+                "https://www.w3.org/TR/SVG/text.html#GlyphOrientationHorizontalProperty"
+            ],
+            "syntax": "<angle>"
+        },
+        "glyph-orientation-vertical": {
+            "comment": "added SVG property",
+            "references": [
+                "https://www.w3.org/TR/SVG/text.html#GlyphOrientationVerticalProperty"
+            ],
+            "syntax": "<angle>"
+        },
+        "kerning": {
+            "comment": "added SVG property",
+            "references": [
+                "https://www.w3.org/TR/SVG/text.html#KerningProperty"
+            ],
+            "syntax": "auto | <svg-length>"
+        },
+        "letter-spacing": {
+            "comment": "fix syntax <length> -> <length-percentage>",
+            "references": [
+                "https://developer.mozilla.org/en-US/docs/Web/SVG/Attribute/letter-spacing"
+            ],
+            "syntax": "normal | <length-percentage>"
+        },
+        "max-width": {
+            "comment": "extend by non-standard size keywords https://developer.mozilla.org/en-US/docs/Web/CSS/width",
+            "syntax": "| stretch | <-non-standard-size>"
+        },
+        "max-height": {
+            "comment": "extend by non-standard size keywords https://developer.mozilla.org/en-US/docs/Web/CSS/width",
+            "syntax": "| stretch | <-non-standard-size>"
+        },
+        "width": {
+            "references": [
+                "https://developer.mozilla.org/en-US/docs/Web/CSS/width",
+                "https://github.com/csstree/stylelint-validator/issues/29"
+            ],
+            "syntax": "| stretch | <-non-standard-size>"
+        },
+        "height": {
+            "syntax": "| stretch | <-non-standard-size>"
+        },
+        "min-width": {
+            "comment": "extend by non-standard width keywords https://developer.mozilla.org/en-US/docs/Web/CSS/width",
+            "syntax": "| stretch | <-non-standard-size>"
+        },
+        "min-height": {
+            "syntax": "| stretch | <-non-standard-size>"
+        },
+        "overflow": {
+            "comment": "extend by vendor keywords https://developer.mozilla.org/en-US/docs/Web/CSS/overflow",
+            "syntax": "| <-non-standard-overflow>"
+        },
+        "pause": {
+            "comment": "https://www.w3.org/TR/css3-speech/#property-index",
+            "syntax": "<'pause-before'> <'pause-after'>?"
+        },
+        "pause-after": {
+            "comment": "https://www.w3.org/TR/css3-speech/#property-index",
+            "syntax": "<time> | none | x-weak | weak | medium | strong | x-strong"
+        },
+        "pause-before": {
+            "comment": "https://www.w3.org/TR/css3-speech/#property-index",
+            "syntax": "<time> | none | x-weak | weak | medium | strong | x-strong"
+        },
+        "rest": {
+            "comment": "https://www.w3.org/TR/css3-speech/#property-index",
+            "syntax": "<'rest-before'> <'rest-after'>?"
+        },
+        "rest-after": {
+            "comment": "https://www.w3.org/TR/css3-speech/#property-index",
+            "syntax": "<time> | none | x-weak | weak | medium | strong | x-strong"
+        },
+        "rest-before": {
+            "comment": "https://www.w3.org/TR/css3-speech/#property-index",
+            "syntax": "<time> | none | x-weak | weak | medium | strong | x-strong"
+        },
+        "scroll-timeline": {
+            "comment": "fix according to spec",
+            "references": [
+                "https://www.w3.org/TR/scroll-animations-1/#scroll-timeline-shorthand"
+            ],
+            "syntax": "[ <'scroll-timeline-name'> || <'scroll-timeline-axis'> ]#"
+        },
+        "scroll-timeline-name": {
+            "comment": "fix according to spec",
+            "references": [
+                "https://w3c.github.io/csswg-drafts/scroll-animations/#propdef-scroll-timeline-name"
+            ],
+            "syntax": "[ none | <dashed-ident> ]#"
+        },
+        "src": {
+            "comment": "added @font-face's src property https://developer.mozilla.org/en-US/docs/Web/CSS/@font-face/src",
+            "syntax": "[ <url> [ format( <string># ) ]? | local( <family-name> ) ]#"
+        },
+        "speak": {
+            "comment": "https://www.w3.org/TR/css3-speech/#property-index",
+            "syntax": "auto | never | always"
+        },
+        "speak-as": {
+            "comment": "https://www.w3.org/TR/css3-speech/#property-index",
+            "syntax": "normal | spell-out || digits || [ literal-punctuation | no-punctuation ]"
+        },
+        "stroke": {
+            "comment": "added SVG property",
+            "references": [
+                "https://www.w3.org/TR/SVG/painting.html#StrokeProperties"
+            ],
+            "syntax": "<paint>"
+        },
+        "stroke-dasharray": {
+            "comment": "added SVG property; a list of comma and/or white space separated <length>s and <percentage>s",
+            "references": [
+                "https://www.w3.org/TR/SVG/painting.html#StrokeProperties"
+            ],
+            "syntax": "none | [ <svg-length>+ ]#"
+        },
+        "stroke-dashoffset": {
+            "comment": "added SVG property",
+            "references": [
+                "https://www.w3.org/TR/SVG/painting.html#StrokeProperties"
+            ],
+            "syntax": "<svg-length>"
+        },
+        "stroke-linejoin": {
+            "comment": "added SVG property",
+            "references": [
+                "https://www.w3.org/TR/SVG/painting.html#StrokeProperties"
+            ],
+            "syntax": "miter | round | bevel"
+        },
+        "stroke-miterlimit": {
+            "comment": "added SVG property (<miterlimit> = <number-one-or-greater>) ",
+            "references": [
+                "https://www.w3.org/TR/SVG/painting.html#StrokeProperties"
+            ],
+            "syntax": "<number-one-or-greater>"
+        },
+        "stroke-width": {
+            "comment": "added SVG property",
+            "references": [
+                "https://www.w3.org/TR/SVG/painting.html#StrokeProperties"
+            ],
+            "syntax": "<svg-length>"
+        },
+        "text-wrap": {
+            "comment": "broken in mdn/data",
+            "syntax": "<'text-wrap-mode'> || <'text-wrap-style'>"
+        },
+        "unicode-bidi": {
+            "comment": "added prefixed keywords https://developer.mozilla.org/en-US/docs/Web/CSS/unicode-bidi",
+            "syntax": "| -moz-isolate | -moz-isolate-override | -moz-plaintext | -webkit-isolate | -webkit-isolate-override | -webkit-plaintext"
+        },
+        "unicode-range": {
+            "comment": "added missed property https://developer.mozilla.org/en-US/docs/Web/CSS/%40font-face/unicode-range",
+            "syntax": "<urange>#"
+        },
+        "voice-balance": {
+            "comment": "https://www.w3.org/TR/css3-speech/#property-index",
+            "syntax": "<number> | left | center | right | leftwards | rightwards"
+        },
+        "voice-duration": {
+            "comment": "https://www.w3.org/TR/css3-speech/#property-index",
+            "syntax": "auto | <time>"
+        },
+        "voice-family": {
+            "comment": "<name> -> <family-name>, https://www.w3.org/TR/css3-speech/#property-index",
+            "syntax": "[ [ <family-name> | <generic-voice> ] , ]* [ <family-name> | <generic-voice> ] | preserve"
+        },
+        "voice-pitch": {
+            "comment": "https://www.w3.org/TR/css3-speech/#property-index",
+            "syntax": "<frequency> && absolute | [ [ x-low | low | medium | high | x-high ] || [ <frequency> | <semitones> | <percentage> ] ]"
+        },
+        "voice-range": {
+            "comment": "https://www.w3.org/TR/css3-speech/#property-index",
+            "syntax": "<frequency> && absolute | [ [ x-low | low | medium | high | x-high ] || [ <frequency> | <semitones> | <percentage> ] ]"
+        },
+        "voice-rate": {
+            "comment": "https://www.w3.org/TR/css3-speech/#property-index",
+            "syntax": "[ normal | x-slow | slow | medium | fast | x-fast ] || <percentage>"
+        },
+        "voice-stress": {
+            "comment": "https://www.w3.org/TR/css3-speech/#property-index",
+            "syntax": "normal | strong | moderate | none | reduced"
+        },
+        "voice-volume": {
+            "comment": "https://www.w3.org/TR/css3-speech/#property-index",
+            "syntax": "silent | [ [ x-soft | soft | medium | loud | x-loud ] || <decibel> ]"
+        },
+        "writing-mode": {
+            "comment": "extend with SVG keywords",
+            "syntax": "| <svg-writing-mode>"
+        },
+        "white-space-trim": {
+            "syntax": "none | discard-before || discard-after || discard-inner",
+            "comment": "missed, https://www.w3.org/TR/css-text-4/#white-space-trim"
+        },
+        "word-break": {
+            "syntax": "normal | break-all | keep-all | break-word | auto-phrase",
+            "comment": "added in Chrome/Edge 119, not covered by a spec currently (2024-09-02)",
+            "references": [
+                "https://developer.mozilla.org/en-US/docs/Web/CSS/word-break"
+            ]
+        }
+    },
+    "types": {
+        "-legacy-gradient": {
+            "comment": "added collection of legacy gradient syntaxes",
+            "syntax": "<-webkit-gradient()> | <-legacy-linear-gradient> | <-legacy-repeating-linear-gradient> | <-legacy-radial-gradient> | <-legacy-repeating-radial-gradient>"
+        },
+        "-legacy-linear-gradient": {
+            "comment": "like standard syntax but w/o `to` keyword https://developer.mozilla.org/en-US/docs/Web/CSS/linear-gradient",
+            "syntax": "-moz-linear-gradient( <-legacy-linear-gradient-arguments> ) | -webkit-linear-gradient( <-legacy-linear-gradient-arguments> ) | -o-linear-gradient( <-legacy-linear-gradient-arguments> )"
+        },
+        "-legacy-repeating-linear-gradient": {
+            "comment": "like standard syntax but w/o `to` keyword https://developer.mozilla.org/en-US/docs/Web/CSS/linear-gradient",
+            "syntax": "-moz-repeating-linear-gradient( <-legacy-linear-gradient-arguments> ) | -webkit-repeating-linear-gradient( <-legacy-linear-gradient-arguments> ) | -o-repeating-linear-gradient( <-legacy-linear-gradient-arguments> )"
+        },
+        "-legacy-linear-gradient-arguments": {
+            "comment": "like standard syntax but w/o `to` keyword https://developer.mozilla.org/en-US/docs/Web/CSS/linear-gradient",
+            "syntax": "[ <angle> | <side-or-corner> ]? , <color-stop-list>"
+        },
+        "-legacy-radial-gradient": {
+            "comment": "deprecated syntax that implemented by some browsers https://www.w3.org/TR/2011/WD-css3-images-20110908/#radial-gradients",
+            "syntax": "-moz-radial-gradient( <-legacy-radial-gradient-arguments> ) | -webkit-radial-gradient( <-legacy-radial-gradient-arguments> ) | -o-radial-gradient( <-legacy-radial-gradient-arguments> )"
+        },
+        "-legacy-repeating-radial-gradient": {
+            "comment": "deprecated syntax that implemented by some browsers https://www.w3.org/TR/2011/WD-css3-images-20110908/#radial-gradients",
+            "syntax": "-moz-repeating-radial-gradient( <-legacy-radial-gradient-arguments> ) | -webkit-repeating-radial-gradient( <-legacy-radial-gradient-arguments> ) | -o-repeating-radial-gradient( <-legacy-radial-gradient-arguments> )"
+        },
+        "-legacy-radial-gradient-arguments": {
+            "comment": "deprecated syntax that implemented by some browsers https://www.w3.org/TR/2011/WD-css3-images-20110908/#radial-gradients",
+            "syntax": "[ <position> , ]? [ [ [ <-legacy-radial-gradient-shape> || <-legacy-radial-gradient-size> ] | [ <length> | <percentage> ]{2} ] , ]? <color-stop-list>"
+        },
+        "-legacy-radial-gradient-size": {
+            "comment": "before a standard it contains 2 extra keywords (`contain` and `cover`) https://www.w3.org/TR/2011/WD-css3-images-20110908/#ltsize",
+            "syntax": "closest-side | closest-corner | farthest-side | farthest-corner | contain | cover"
+        },
+        "-legacy-radial-gradient-shape": {
+            "comment": "define to double sure it doesn't extends in future https://www.w3.org/TR/2011/WD-css3-images-20110908/#ltshape",
+            "syntax": "circle | ellipse"
+        },
+        "-non-standard-font": {
+            "comment": "non standard fonts",
+            "references": [
+                "https://webkit.org/blog/3709/using-the-system-font-in-web-content/"
+            ],
+            "syntax": "-apple-system-body | -apple-system-headline | -apple-system-subheadline | -apple-system-caption1 | -apple-system-caption2 | -apple-system-footnote | -apple-system-short-body | -apple-system-short-headline | -apple-system-short-subheadline | -apple-system-short-caption1 | -apple-system-short-footnote | -apple-system-tall-body"
+        },
+        "-non-standard-color": {
+            "comment": "non standard colors",
+            "references": [
+                "http://cssdot.ru/%D0%A1%D0%BF%D1%80%D0%B0%D0%B2%D0%BE%D1%87%D0%BD%D0%B8%D0%BA_CSS/color-i305.html",
+                "https://developer.mozilla.org/en-US/docs/Web/CSS/color_value#Mozilla_Color_Preference_Extensions"
+            ],
+            "syntax": "-moz-ButtonDefault | -moz-ButtonHoverFace | -moz-ButtonHoverText | -moz-CellHighlight | -moz-CellHighlightText | -moz-Combobox | -moz-ComboboxText | -moz-Dialog | -moz-DialogText | -moz-dragtargetzone | -moz-EvenTreeRow | -moz-Field | -moz-FieldText | -moz-html-CellHighlight | -moz-html-CellHighlightText | -moz-mac-accentdarkestshadow | -moz-mac-accentdarkshadow | -moz-mac-accentface | -moz-mac-accentlightesthighlight | -moz-mac-accentlightshadow | -moz-mac-accentregularhighlight | -moz-mac-accentregularshadow | -moz-mac-chrome-active | -moz-mac-chrome-inactive | -moz-mac-focusring | -moz-mac-menuselect | -moz-mac-menushadow | -moz-mac-menutextselect | -moz-MenuHover | -moz-MenuHoverText | -moz-MenuBarText | -moz-MenuBarHoverText | -moz-nativehyperlinktext | -moz-OddTreeRow | -moz-win-communicationstext | -moz-win-mediatext | -moz-activehyperlinktext | -moz-default-background-color | -moz-default-color | -moz-hyperlinktext | -moz-visitedhyperlinktext | -webkit-activelink | -webkit-focus-ring-color | -webkit-link | -webkit-text"
+        },
+        "-non-standard-image-rendering": {
+            "comment": "non-standard keywords http://phrogz.net/tmp/canvas_image_zoom.html",
+            "syntax": "optimize-contrast | -moz-crisp-edges | -o-crisp-edges | -webkit-optimize-contrast"
+        },
+        "-non-standard-overflow": {
+            "comment": "non-standard keywords https://developer.mozilla.org/en-US/docs/Web/CSS/overflow",
+            "syntax": "overlay | -moz-scrollbars-none | -moz-scrollbars-horizontal | -moz-scrollbars-vertical | -moz-hidden-unscrollable"
+        },
+        "-non-standard-size": {
+            "comment": "non-standard keywords https://developer.mozilla.org/en-US/docs/Web/CSS/width",
+            "syntax": "intrinsic | min-intrinsic | -webkit-fill-available | -webkit-fit-content | -webkit-min-content | -webkit-max-content  | -moz-available | -moz-fit-content | -moz-min-content | -moz-max-content"
+        },
+        "-webkit-gradient()": {
+            "comment": "first Apple proposal gradient syntax https://webkit.org/blog/175/introducing-css-gradients/ - TODO: simplify when after match algorithm improvement ( [, point, radius | , point] -> [, radius]? , point )",
+            "syntax": "-webkit-gradient( <-webkit-gradient-type>, <-webkit-gradient-point> [, <-webkit-gradient-point> | , <-webkit-gradient-radius>, <-webkit-gradient-point> ] [, <-webkit-gradient-radius>]? [, <-webkit-gradient-color-stop>]* )"
+        },
+        "-webkit-gradient-color-stop": {
+            "comment": "first Apple proposal gradient syntax https://webkit.org/blog/175/introducing-css-gradients/",
+            "syntax": "from( <color> ) | color-stop( [ <number-zero-one> | <percentage> ] , <color> ) | to( <color> )"
+        },
+        "-webkit-gradient-point": {
+            "comment": "first Apple proposal gradient syntax https://webkit.org/blog/175/introducing-css-gradients/",
+            "syntax": "[ left | center | right | <length-percentage> ] [ top | center | bottom | <length-percentage> ]"
+        },
+        "-webkit-gradient-radius": {
+            "comment": "first Apple proposal gradient syntax https://webkit.org/blog/175/introducing-css-gradients/",
+            "syntax": "<length> | <percentage>"
+        },
+        "-webkit-gradient-type": {
+            "comment": "first Apple proposal gradient syntax https://webkit.org/blog/175/introducing-css-gradients/",
+            "syntax": "linear | radial"
+        },
+        "-webkit-mask-box-repeat": {
+            "comment": "missed; https://developer.mozilla.org/en-US/docs/Web/CSS/-webkit-mask-box-image",
+            "syntax": "repeat | stretch | round"
+        },
+        "-ms-filter-function-list": {
+            "comment": "https://developer.mozilla.org/en-US/docs/Web/CSS/-ms-filter",
+            "syntax": "<-ms-filter-function>+"
+        },
+        "-ms-filter-function": {
+            "comment": "https://developer.mozilla.org/en-US/docs/Web/CSS/-ms-filter",
+            "syntax": "<-ms-filter-function-progid> | <-ms-filter-function-legacy>"
+        },
+        "-ms-filter-function-progid": {
+            "comment": "https://developer.mozilla.org/en-US/docs/Web/CSS/-ms-filter",
+            "syntax": "'progid:' [ <ident-token> '.' ]* [ <ident-token> | <function-token> <any-value>? ) ]"
+        },
+        "-ms-filter-function-legacy": {
+            "comment": "https://developer.mozilla.org/en-US/docs/Web/CSS/-ms-filter",
+            "syntax": "<ident-token> | <function-token> <any-value>? )"
+        },
+        "absolute-color-base": {
+            "comment": "https://www.w3.org/TR/css-color-4/#color-syntax",
+            "syntax": "<hex-color> | <absolute-color-function> | <named-color> | transparent"
+        },
+        "absolute-color-function": {
+            "comment": "https://www.w3.org/TR/css-color-4/#color-syntax",
+            "syntax": "<rgb()> | <rgba()> | <hsl()> | <hsla()> | <hwb()> | <lab()> | <lch()> | <oklab()> | <oklch()> | <color()>"
+        },
+        "age": {
+            "comment": "https://www.w3.org/TR/css3-speech/#voice-family",
+            "syntax": "child | young | old"
+        },
+        "anchor-name": {
+            "comment": "missed in mdn/data",
+            "syntax": "<dashed-ident>"
+        },
+        "attr-name": {
+            "syntax": "<wq-name>"
+        },
+        "attr-fallback": {
+            "syntax": "<any-value>"
+        },
+        "bg-clip": {
+            "comment": "missed, https://drafts.csswg.org/css-backgrounds-4/#typedef-bg-clip",
+            "syntax": "<box> | border | text"
+        },
+        "bottom": {
+            "comment": "missed; not sure we should add it, but no others except `shape` is using it so it's ok for now; https://drafts.fxtf.org/css-masking-1/#funcdef-clip-rect",
+            "syntax": "<length> | auto"
+        },
+        "content-list": {
+            "comment": "added attr(), see https://github.com/csstree/csstree/issues/201",
+            "syntax": "[ <string> | contents | <image> | <counter> | <quote> | <target> | <leader()> | <attr()> ]+"
+        },
+        "container-name": {
+            "comment": "missed, https://drafts.csswg.org/css-contain-3/#container-rule",
+            "syntax": "<custom-ident>"
+        },
+        "container-condition": {
+            "comment": "missed, https://drafts.csswg.org/css-contain-3/#container-rule",
+            "syntax": "not <query-in-parens> | <query-in-parens> [ [ and <query-in-parens> ]* | [ or <query-in-parens> ]* ]"
+        },
+        "coord-box": {
+            "syntax": "content-box | padding-box | border-box | fill-box | stroke-box | view-box"
+        },
+        "element()": {
+            "comment": "https://drafts.csswg.org/css-gcpm/#element-syntax & https://drafts.csswg.org/css-images-4/#element-notation",
+            "syntax": "element( <custom-ident> , [ first | start | last | first-except ]? ) | element( <id-selector> )"
+        },
+        "generic-voice": {
+            "comment": "https://www.w3.org/TR/css3-speech/#voice-family",
+            "syntax": "[ <age>? <gender> <integer>? ]"
+        },
+        "gender": {
+            "comment": "https://www.w3.org/TR/css3-speech/#voice-family",
+            "syntax": "male | female | neutral"
+        },
+        "general-enclosed": {
+            "comment": "remove ident-token, optional any-value, brackets (see https://drafts.csswg.org/mediaqueries-5/#typedef-general-enclosed)",
+            "syntax": "[ <function-token> <any-value>? ) ] | [ ( <any-value>? ) ]"
+        },
+        "generic-family": {
+            "comment": "new definition on font-4, https://drafts.csswg.org/css-fonts-4/#typedef-generic-family",
+            "syntax": "<generic-script-specific>| <generic-complete> | <generic-incomplete> | <-non-standard-generic-family>"
+        },
+        "generic-script-specific": {
+            "syntax": "generic(kai) | generic(fangsong) | generic(nastaliq)"
+        },
+        "generic-complete": {
+            "syntax": "serif | sans-serif | system-ui | cursive | fantasy | math | monospace"
+        },
+        "generic-incomplete": {
+            "syntax": "ui-serif | ui-sans-serif | ui-monospace | ui-rounded"
+        },
+        "-non-standard-generic-family": {
+            "syntax": "-apple-system | BlinkMacSystemFont",
+            "references": [
+                "https://css-tricks.com/snippets/css/system-font-stack/",
+                "https://webkit.org/blog/3709/using-the-system-font-in-web-content/"
+            ]
+        },
+        "gradient": {
+            "comment": "added legacy syntaxes support",
+            "syntax": "| <-legacy-gradient>"
+        },
+        "left": {
+            "comment": "missed; not sure we should add it, but no others except `shape` is using it so it's ok for now; https://drafts.fxtf.org/css-masking-1/#funcdef-clip-rect",
+            "syntax": "<length> | auto"
+        },
+        "color": {
+            "comment": "css-color-5, added non standard color names",
+            "syntax": "<color-base> | currentColor | <system-color> | <device-cmyk()>  | <light-dark()> | <-non-standard-color>"
+        },
+        "color-base": {
+            "syntax": "<hex-color> | <color-function> | <named-color> | <color-mix()> | transparent"
+        },
+        "color-function": {
+            "syntax": "<rgb()> | <rgba()> | <hsl()> | <hsla()> | <hwb()> | <lab()> | <lch()> | <oklab()> | <oklch()> | <color()>"
+        },
+        "device-cmyk()": {
+            "syntax": "<legacy-device-cmyk-syntax> | <modern-device-cmyk-syntax>"
+        },
+        "legacy-device-cmyk-syntax": {
+            "syntax": "device-cmyk( <number>#{4} )"
+        },
+        "modern-device-cmyk-syntax": {
+            "syntax": "device-cmyk( <cmyk-component>{4} [ / [ <alpha-value> | none ] ]? )"
+        },
+        "cmyk-component": {
+            "syntax": "<number> | <percentage> | none"
+        },
+        "color-mix()": {
+            "syntax": "color-mix( <color-interpolation-method> , [ <color> && <percentage [0,100]>? ]#{2} )"
+        },
+        "color-interpolation-method": {
+            "syntax": "in [ <rectangular-color-space> | <polar-color-space> <hue-interpolation-method>? | <custom-color-space> ]"
+        },
+        "color-space": {
+            "syntax": "<rectangular-color-space> | <polar-color-space> | <custom-color-space>"
+        },
+        "custom-color-space": {
+            "syntax": "<dashed-ident>"
+        },
+        "paint": {
+            "comment": "used by SVG https://www.w3.org/TR/SVG/painting.html#SpecifyingPaint",
+            "syntax": "none | <color> | <url> [ none | <color> ]? | context-fill | context-stroke"
+        },
+        "palette-identifier": {
+            "comment": "<palette-identifier> is parsed as a <dashed-ident> (https://drafts.csswg.org/css-fonts/#typedef-font-palette-palette-identifier)",
+            "syntax": "<dashed-ident>"
+        },
+        "right": {
+            "comment": "missed; not sure we should add it, but no others except `shape` is using it so it's ok for now; https://drafts.fxtf.org/css-masking-1/#funcdef-clip-rect",
+            "syntax": "<length> | auto"
+        },
+        "shape": {
+            "comment": "missed spaces in function body and add backwards compatible syntax",
+            "syntax": "rect( <top>, <right>, <bottom>, <left> ) | rect( <top> <right> <bottom> <left> )"
+        },
+        "scope-start": {
+            "syntax": "<forgiving-selector-list>"
+        },
+        "scope-end": {
+            "syntax": "<forgiving-selector-list>"
+        },
+        "forgiving-selector-list": {
+            "syntax": "<complex-real-selector-list>"
+        },
+        "forgiving-relative-selector-list": {
+            "syntax": "<relative-real-selector-list>"
+        },
+        "selector-list": {
+            "syntax": "<complex-selector-list>"
+        },
+        "complex-real-selector-list": {
+            "syntax": "<complex-real-selector>#"
+        },
+        "simple-selector-list": {
+            "syntax": "<simple-selector>#"
+        },
+        "relative-real-selector-list": {
+            "syntax": "<relative-real-selector>#"
+        },
+        "complex-selector": {
+            "syntax": "<complex-selector-unit> [ <combinator>? <complex-selector-unit> ]*"
+        },
+        "complex-selector-unit": {
+            "syntax": "[ <compound-selector>? <pseudo-compound-selector>* ]!"
+        },
+        "complex-real-selector": {
+            "syntax": "<compound-selector> [ <combinator>? <compound-selector> ]*"
+        },
+        "relative-real-selector": {
+            "syntax": "<combinator>? <complex-real-selector>"
+        },
+        "compound-selector": {
+            "syntax": "[ <type-selector>? <subclass-selector>* ]!"
+        },
+        "pseudo-compound-selector": {
+            "syntax": " <pseudo-element-selector> <pseudo-class-selector>*"
+        },
+        "simple-selector": {
+            "syntax": "<type-selector> | <subclass-selector>"
+        },
+        "combinator": {
+            "syntax": "'>' | '+' | '~' | [ '|' '|' ]"
+        },
+        "pseudo-element-selector": {
+            "syntax": "':' <pseudo-class-selector> | <legacy-pseudo-element-selector>"
+        },
+        "legacy-pseudo-element-selector": {
+            "syntax": " ':' [before | after | first-line | first-letter]"
+        },
+        "single-animation-composition": {
+            "comment": "missed definition",
+            "references": [
+                "https://w3c.github.io/csswg-drafts/css-animations-2/#typedef-single-animation-composition"
+            ],
+            "syntax": "replace | add | accumulate"
+        },
+        "svg-length": {
+            "comment": "All coordinates and lengths in SVG can be specified with or without a unit identifier",
+            "references": [
+                "https://www.w3.org/TR/SVG11/coords.html#Units"
+            ],
+            "syntax": "<percentage> | <length> | <number>"
+        },
+        "svg-writing-mode": {
+            "comment": "SVG specific keywords (deprecated for CSS)",
+            "references": [
+                "https://developer.mozilla.org/en/docs/Web/CSS/writing-mode",
+                "https://www.w3.org/TR/SVG/text.html#WritingModeProperty"
+            ],
+            "syntax": "lr-tb | rl-tb | tb-rl | lr | rl | tb"
+        },
+        "top": {
+            "comment": "missed; not sure we should add it, but no others except `shape` is using it so it's ok for now; https://drafts.fxtf.org/css-masking-1/#funcdef-clip-rect",
+            "syntax": "<length> | auto"
+        },
+        "x": {
+            "comment": "missed; not sure we should add it, but no others except `cursor` is using it so it's ok for now; https://drafts.csswg.org/css-ui-3/#cursor",
+            "syntax": "<number>"
+        },
+        "y": {
+            "comment": "missed; not sure we should add it, but no others except `cursor` is using so it's ok for now; https://drafts.csswg.org/css-ui-3/#cursor",
+            "syntax": "<number>"
+        },
+        "declaration": {
+            "comment": "missed, restored by https://drafts.csswg.org/css-syntax",
+            "syntax": "<ident-token> : <declaration-value>? [ '!' important ]?"
+        },
+        "declaration-list": {
+            "comment": "missed, restored by https://drafts.csswg.org/css-syntax",
+            "syntax": "[ <declaration>? ';' ]* <declaration>?"
+        },
+        "url": {
+            "comment": "https://drafts.csswg.org/css-values-4/#urls",
+            "syntax": "url( <string> <url-modifier>* ) | <url-token>"
+        },
+        "url-modifier": {
+            "comment": "https://drafts.csswg.org/css-values-4/#typedef-url-modifier",
+            "syntax": "<ident> | <function-token> <any-value> )"
+        },
+        "number-zero-one": {
+            "syntax": "<number [0,1]>"
+        },
+        "number-one-or-greater": {
+            "syntax": "<number [1,∞]>"
+        },
+        "color()": {
+            "syntax": "color( <colorspace-params> [ / [ <alpha-value> | none ] ]? )"
+        },
+        "colorspace-params": {
+            "syntax": "[ <predefined-rgb-params> | <xyz-params>]"
+        },
+        "predefined-rgb-params": {
+            "syntax": "<predefined-rgb> [ <number> | <percentage> | none ]{3}"
+        },
+        "predefined-rgb": {
+            "syntax": "srgb | srgb-linear | display-p3 | a98-rgb | prophoto-rgb | rec2020"
+        },
+        "xyz-params": {
+            "syntax": "<xyz-space> [ <number> | <percentage> | none ]{3}"
+        },
+        "xyz-space": {
+            "syntax": "xyz | xyz-d50 | xyz-d65"
+        },
+        "oklab()": {
+            "comment": "https://www.w3.org/TR/css-color-4/#specifying-oklab-oklch",
+            "syntax": "oklab( [ <percentage> | <number> | none] [ <percentage> | <number> | none] [ <percentage> | <number> | none] [ / [<alpha-value> | none] ]? )"
+        },
+        "oklch()": {
+            "comment": "https://www.w3.org/TR/css-color-4/#specifying-oklab-oklch",
+            "syntax": "oklch( [ <percentage> | <number> | none] [ <percentage> | <number> | none] [ <hue> | none] [ / [<alpha-value> | none] ]? )"
+        },
+        "offset-path": {
+            "syntax": "<ray()> | <url> | <basic-shape>"
+        },
+        "basic-shape": {
+            "syntax": "<inset()> | <xywh()> | <rect()> | <circle()> | <ellipse()> | <polygon()> | <path()>"
+        },
+        "rect()": {
+            "comment": "missed, https://drafts.csswg.org/css-shapes/#supported-basic-shapes",
+            "syntax": "rect( [ <length-percentage> | auto ]{4} [ round <'border-radius'> ]? )"
+        },
+        "xywh()": {
+            "comment": "missed, https://drafts.csswg.org/css-shapes/#supported-basic-shapes",
+            "syntax": "xywh( <length-percentage>{2} <length-percentage [0,∞]>{2} [ round <'border-radius'> ]? )"
+        },
+        "query-in-parens": {
+            "comment": "missed, https://drafts.csswg.org/css-contain-3/#container-rule",
+            "syntax": "( <container-condition> ) | ( <size-feature> ) | style( <style-query> ) | <general-enclosed>"
+        },
+        "size-feature": {
+            "comment": "missed, https://drafts.csswg.org/css-contain-3/#typedef-size-feature",
+            "syntax": "<mf-plain> | <mf-boolean> | <mf-range>"
+        },
+        "style-feature": {
+            "comment": "missed, https://drafts.csswg.org/css-contain-3/#typedef-style-feature",
+            "syntax": "<declaration>"
+        },
+        "style-query": {
+            "comment": "missed, https://drafts.csswg.org/css-contain-3/#container-rule",
+            "syntax": "<style-condition> | <style-feature>"
+        },
+        "style-condition": {
+            "comment": "missed, https://drafts.csswg.org/css-contain-3/#container-rule",
+            "syntax": "not <style-in-parens> | <style-in-parens> [ [ and <style-in-parens> ]* | [ or <style-in-parens> ]* ]"
+        },
+        "style-in-parens": {
+            "comment": "missed, https://drafts.csswg.org/css-contain-3/#container-rule",
+            "syntax": "( <style-condition> ) | ( <style-feature> ) | <general-enclosed>"
+        },
+        "-non-standard-display": {
+            "syntax": "-ms-inline-flexbox | -ms-grid | -ms-inline-grid | -webkit-flex | -webkit-inline-flex | -webkit-box | -webkit-inline-box | -moz-inline-stack | -moz-box | -moz-inline-box"
+        },
+        "inset-area": {
+            "syntax": "[ [ 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 | center | 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 | span-all ] | [ block-start | center | block-end | span-block-start | span-block-end | span-all ] || [ inline-start | center | inline-end | span-inline-start | span-inline-end | span-all ] | [ self-block-start | self-block-end | span-self-block-start | span-self-block-end | span-all ] || [ self-inline-start | self-inline-end | span-self-inline-start | span-self-inline-end | span-all ] | [ start | center | end | span-start | span-end | span-all ]{1,2} | [ self-start | center | self-end | span-self-start | span-self-end | span-all ]{1,2} ]",
+            "comment": "initial name for <position-area> before renamed",
+            "references": [
+                "https://www.w3.org/TR/css-anchor-position-1/#inset-area"
+            ]
+        },
+        "position-area": {
+            "syntax": "[ [ 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 | center | 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 | span-all ] | [ block-start | center | block-end | span-block-start | span-block-end | span-all ] || [ inline-start | center | inline-end | span-inline-start | span-inline-end | span-all ] | [ self-block-start | center | self-block-end | span-self-block-start | span-self-block-end | span-all ] || [ self-inline-start | center | self-inline-end | span-self-inline-start | span-self-inline-end | span-all ] | [ start | center | end | span-start | span-end | span-all ]{1,2} | [ self-start | center | self-end | span-self-start | span-self-end | span-all ]{1,2} ]",
+            "comment": "replaced <inset-area>",
+            "references": [
+                "https://drafts.csswg.org/css-anchor-position-1/#typedef-position-area"
+            ]
+        },
+        "anchor()": {
+            "syntax": "anchor( <anchor-element>? && <anchor-side>, <length-percentage>? )",
+            "comment": "missed",
+            "references": [
+                "https://drafts.csswg.org/css-anchor-position-1/#anchor-pos"
+            ]
+        },
+        "anchor-side": {
+            "syntax": "inside | outside | top | left | right | bottom | start | end | self-start | self-end | <percentage> | center"
+        },
+        "anchor-size()": {
+            "syntax": "anchor-size( [ <anchor-element> || <anchor-size> ]? , <length-percentage>? )",
+            "comment": "missed",
+            "references": [
+                "https://drafts.csswg.org/css-anchor-position-1/#funcdef-anchor-size"
+            ]
+        },
+        "anchor-size": {
+            "syntax": "width | height | block | inline | self-block | self-inline"
+        },
+        "anchor-element": {
+            "syntax": "<dashed-ident>",
+            "comment": "missed, https://drafts.csswg.org/css-anchor-position-1/#typedef-anchor-element"
+        },
+        "try-size": {
+            "syntax": "most-width | most-height | most-block-size | most-inline-size",
+            "comment": "missed, https://drafts.csswg.org/css-anchor-position-1/#typedef-try-size"
+        },
+        "try-tactic": {
+            "syntax": "flip-block || flip-inline || flip-start",
+            "comment": "missed, https://drafts.csswg.org/css-anchor-position-1/#typedef-position-try-fallbacks-try-tactic"
+        },
+        "font-variant-css2": {
+            "syntax": "normal | small-caps",
+            "comment": "new definition on font-4, https://drafts.csswg.org/css-fonts-4/#font-variant-css21-values"
+        },
+        "font-width-css3": {
+            "syntax": "normal | ultra-condensed | extra-condensed | condensed | semi-condensed | semi-expanded | expanded | extra-expanded | ultra-expanded",
+            "comment": "new definition on font-4, https://drafts.csswg.org/css-fonts-4/#font-width-css3-values"
+        },
+        "system-family-name": {
+            "syntax": "caption | icon | menu | message-box | small-caption | status-bar",
+            "comment": "new definition on font-4, https://drafts.csswg.org/css-fonts-4/#system-family-name-value"
+        }
+    }
+}
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