CSS Box Sizing Module Level 3
calc-size()

CSS Color Module Level 4
<hex-color>
<quirky-color>

CSS Transforms Module Level 1
<transform-function>

CSS Extensions
<extension-name>

Pointer-driven Animations
<timeline-range-center-subject>

Scroll-driven Animations
<timeline-range-name>

Selectors Level 5
<level>

Selectors Level 4
<forgiving-selector-list>

CSS Speech Module Level 1
<decibel>
<age>
<gender>
<semitones>

CSS Images Module Level 4
-webkit-image-set()

Media Queries Level 4
<media-query-list>

CSS Custom Functions and Mixins Module Level 1
<dashed-function>

Filter Effects Module Level 1
<url>

CSS Values and Units Module Level 5
cross-origin()
integrity()
referrer-policy()
<output-value>
<segment-options>
<whole-value>
<attr-unit>
sibling-count()
sibling-index()
<size-keyword>

CSS Cascading and Inheritance Module Level 6
<scope-start>
<scope-end>

CSS Lists and Counters Module Level 3
<counter-name>

CSS Gap Decorations Module Level 1
repeat()

CSS Color Module Level 6
wcag2()

Media Queries Level 5
<media-query-list>
<mq-boolean>

Cascading Style Sheets (CSS) Level 2
<identifier>
<uri>
<margin-width>
<shape>
<absolute-size>
<relative-size>

CSS Basic User Interface Module Level 4
<url-set>
<outline-line-style>
<id>
<target-name>

CSS Transforms Module Level 2
<transform-function>

CSS Syntax Module Level 3
<ident-token>
<function-token>
<at-keyword-token>
<hash-token>
<string-token>
<bad-string-token>
<url-token>
<bad-url-token>
<delim-token>
<number-token>
<percentage-token>
<dimension-token>
<unicode-range-token>
<whitespace-token>
<CDO-token>
<CDC-token>
<colon-token>
<semicolon-token>
<comma-token>
<[-token>
<]-token>
<(-token>
<)-token>
<{-token>
<}-token>
<eof-token>
<n-dimension>
<ndash-dimension>
<ndashdigit-dimension>
<ndashdigit-ident>
<dashndashdigit-ident>
<signed-integer>
<signless-integer>
<block-contents>
<declaration-list>
<qualified-rule-list>
<at-rule-list>
<declaration-rule-list>
<rule-list>
<declaration-value>
<any-value>

CSS Values and Units Module Level 4
<ident>
<custom-ident>
<dashed-ident>
<string>
<url-modifier>
<integer>
<number>
<zero>
<dimension>
<percentage>
<quirky-length>

CSS Conditional Rules Module Level 5
<boolean-condition>
<size-feature>
<style-feature-name>
<style-feature-value>
<scroll-state-feature>

CSS Fonts Module Level 4
<palette-identifier>
<palette-mix()>
<integer>
<font-src-list>

CSS Masking Module Level 1
<top>
<right>
<bottom>
<left>

CSS Custom Properties for Cascading Variables Module Level 2
<custom-property-name>

