@if $use-swing == true {

	@-webkit-keyframes swing {
		20%, 40%, 60%, 80%, 100% { -webkit-transform-origin: $base-origin; }
		20% { -webkit-transform: rotate(15deg); }
		40% { -webkit-transform: rotate(-10deg); }
		60% { -webkit-transform: rotate(5deg); }
		80% { -webkit-transform: rotate(-5deg); }
		100% { -webkit-transform: rotate(0deg); }
	}

	@-moz-keyframes swing {
		20% { -moz-transform: rotate(15deg); }
		40% { -moz-transform: rotate(-10deg); }
		60% { -moz-transform: rotate(5deg); }
		80% { -moz-transform: rotate(-5deg); }
		100% { -moz-transform: rotate(0deg); }
	}

	@-o-keyframes swing {
		20% { -o-transform: rotate(15deg); }
		40% { -o-transform: rotate(-10deg); }
		60% { -o-transform: rotate(5deg); }
		80% { -o-transform: rotate(-5deg); }
		100% { -o-transform: rotate(0deg); }
	}

	@keyframes swing {
		20% { transform: rotate(15deg); }
		40% { transform: rotate(-10deg); }
		60% { transform: rotate(5deg); }
		80% { transform: rotate(-5deg); }
		100% { transform: rotate(0deg); }
	}

	.swing {
		@include animate-prefixer(transform-origin, $base-origin);
		@include animate-prefixer(animation-name, swing);
	}

}