/* Border Fade */
.border-fade() {
	@borderWidth: 4px;

	.hacks();
	.prefixed(transition-duration, @mediumDuration);
	.prefixed(transition-property, box-shadow);
	box-shadow:
			inset 0 0 0 @borderWidth @primaryColor,
			0 0 1px rgba(0, 0, 0, 0); /* Hack to improve aliasing on mobile/tablet devices */

	&:hover,
	&:focus,
	&:active {
		box-shadow:
			inset 0 0 0 @borderWidth @activeColor,
			0 0 1px rgba(0, 0, 0, 0); /* Hack to improve aliasing on mobile/tablet devices */
	}
}