" TODO: create cssCounterStyleDescriptor for `@counter-style` descriptors
syn region cssInclude start=/@counter-style\>/ end=/\ze{/ skipwhite skipnl contains=css.*Prop,css.*Attr,cssValueInteger,cssValueLength,cssMediaKeyword,cssVendor,cssIncludeKeyword,cssComment nextgroup=cssMediaBlock
syn keyword cssGeneratedContentProp contained system negative prefix suffix range pad fallback
syn match cssGeneratedContentProp contained "\<\(additive-\)\=symbols\>"
syn match cssGeneratedContentProp contained "\<speak-as\>"
syn keyword cssGeneratedContentAttr contained cyclic symbolic additive extends bullets numbers words
syn match cssGeneratedContentAttr contained "\<cjk-decimal\>"
syn match cssGeneratedContentAttr contained "\<disclosure-\(open\|closed\)\>"
syn match cssGeneratedContentAttr contained "\<simp-chinese-\(in\)\=formal\>"
syn match cssGeneratedContentAttr contained "\<trad-chinese-\(in\)\=formal\>"
syn match cssGeneratedContentAttr contained "\<ethiopic-numeric\>"
syn region cssFunction contained matchgroup=cssFunctionName start="\<symbols\s*(" end=")" oneline keepend