@mixin u-transform($property: none) {
    @if u-contains($saf-prefixes, "webkit") and u-contains($saf-prefixes, "ms") {
        @include u-prefix(transform, $property, webkit ms spec);
    } @else if u-contains($saf-prefixes, "webkit") {
        @include u-prefix(transform, $property, webkit spec);
    } @else {
        @include u-prefix(transform, $property, spec);
    }
}