syn keyword cssFontProp contained border-top-radius border-right-radius border-bottom-radius border-left-radius border-block-start-radius border-block-end-radius border-inline-start-radius border-inline-end-radius corner-top-left-shape corner-top-right-shape corner-bottom-right-shape corner-bottom-left-shape corner-start-start-shape corner-start-end-shape corner-end-start-shape corner-end-end-shape corner-top-shape corner-right-shape corner-bottom-shape corner-left-shape corner-block-start-shape corner-block-end-shape corner-inline-start-shape corner-inline-end-shape corner-shape corners border-limit border-clip border-clip-top border-clip-right border-clip-bottom border-clip-left box-shadow-color box-shadow-offset box-shadow-blur box-shadow-spread box-shadow-position border-shape
syn keyword cssFontAttr contained squircle bevel scoop notch sides corners
syn region cssFunction contained matchgroup=cssFunctionName start="\<superellipse\s*(" end=")" oneline keepend