@include keyframes(pressIn) {
    100% {
        @include transform(scale(.7));
    }
}
@mixin pressIn($count: $countDefault, $duration: $durationSmallDefault, $delay: $delayDefault, $function: $functionDefault, $fill: $fillDefault, $visibility: $visibilityDefault) {
    @include animation-name(pressIn);
    @include count($count);
    @include duration($duration);
    @include delay($delay);
    @include function($function);
    @include fill-mode($fill);
    @include visibility($visibility);
}