@include u-keyframes(spin) {
    0% {
        @include u-transform(rotate(0deg) translateZ(0));
    }
    100% {
        @include u-transform(rotate(360deg));
    }
}

@mixin spin($duration: 0.5s, $delay: 0s, $fill-mode: none, $count: 1, $timing: ease-in-out) {
    @include u-animation(spin $count $duration $delay $fill-mode $timing);
}