a.back-to-top {
	position: fixed;
	z-index: 999;
	right: 0.75rem;
	bottom: 0.75rem;
	display: none;
	width: 2.625rem;
	height: 2.625rem;
	border-radius: 1.875rem;
	background: #00c9db url("../images/up-arrow.png") no-repeat center 47%;
	background-size: 1.125rem 1.125rem;
	text-indent: -9999px;
}

a:hover.back-to-top {
	background-color: #009dab;
}