" Use a different name in order to avoid css syntax interference silent! syntax clear cssUnitDecorators syntax match cssUnitDecorators2 \ /\(#\|-\|+\|%\|mm\|cm\|in\|pt\|pc\|em\|ex\|px\|ch\|rem\|vh\|vw\|vmin\|vmax\|dpi\|dppx\|dpcm\|Hz\|kHz\|s\|ms\|deg\|grad\|rad\)\ze\(;\|$\)/ \ contained \ containedin=cssAttrRegion,sassCssAttribute,lessCssAttribute,stylusCssAttribute silent! syntax clear cssKeyFrameProp syn match cssKeyFrameProp2 /\d*%\|from\|to/ \ contained nextgroup=cssDefinition \ containedin=cssAttrRegion,sassCssAttribute,lessCssAttribute,stylusCssAttribute highlight default link cssUnitDecorators2 Number highlight default link cssKeyFrameProp2 Constant