thenIf
fun <K : ComponentKind> CssStyleVariant<K>.thenIf(condition: Boolean, produce: () -> CssStyleVariant<K>): CssStyleVariant<K>(source)
fun <K : ComponentKind> CssStyleVariant<K>.thenIf(condition: Boolean, other: CssStyleVariant<K>): CssStyleVariant<K>(source)