/* Float Shadow */
@mixin float-shadow {
	@include hacks();
	position: relative;
	@include prefixed(transition-duration, $mediumDuration);
	@include prefixed(transition-property, transform);

	&:before {
	  pointer-events: none;
	  position: absolute;
	  z-index: -1;
	  content: '';
	  top: 100%;
	  left: 5%;
	  height: 10px;
	  width: 90%;
	  opacity: 0;
	  background: -webkit-radial-gradient(center, ellipse, rgba(0,0,0,.35) 0%, rgba(0, 0, 0, 0) 80%);
	  background: radial-gradient(ellipse at center, rgba(0,0,0,.35) 0%,rgba(0,0,0,0) 80%); /* W3C */
		@include prefixed(transition-duration, $mediumDuration);
		@include prefixed(transition-property, "transform, opacity");
	}

	&:hover,
	&:focus,
	&:active {
		@include prefixed(transform, translateY(-5px)); /* move the element up by 5px */

		&:before {
			opacity: 1;
			@include prefixed(transform, translateY(5px)); /* move the element down by 5px (it will stay in place because it's attached to the element that also moves up 5px) */
		}
	}
}