Variable CSSVariableReferenceValue
CSSVariableReferenceValue : {
prototype: CSSVariableReferenceValue;
new (variable: string, fallback?: CSSUnparsedValue): CSSVariableReferenceValue;
}
prototype: CSSVariableReferenceValue;
new (variable: string, fallback?: CSSUnparsedValue): CSSVariableReferenceValue;
}