@include u-keyframes(fadeOut) {
    0% {
        opacity: 1;
        @include u-transform(translateZ(0));
    }
    100% {
        opacity: 0;
    }
}

@mixin fadeOut($duration: 1s, $delay: 0s, $fill-mode: forwards) {
    @include u-animation(fadeOut $duration $delay $fill-mode);
}