over.scss

@mixin over($mobile-touch-class:false) {
  html.no-touch & {
    &:hover,
    &:focus {
      @content;
    }
  }
  html.touch & {
    @if $mobile-touch-class {
      &.#{$mobile-touch-class} {
        @content;
      }
    }
    @else {
      &:active {
        @content;
      }
    }
    -webkit-tap-highlight-color: rgba(#000, 0);
  }
}