CSS.supportsfunction supports(property: string, value: string): boolean;function supports(conditionText: string): boolean;§supports(property: string, value: string): boolean[src]§Parameters§property: string[src]§value: string[src]§Return Type§boolean[src]§supports(conditionText: string): boolean[src]§Parameters§conditionText: string[src]§Return Type§boolean[src]