sup { color: #828282;}

.back-to-top {
	display: none;
	z-index: 299;
	position: fixed;
	width: 40px;
	height: 40px;
	background-color: #333;
	background-color: rgba(0,0,0,0.3);
	font-size: 20px;
	line-height: 36px;
	text-align: center;
	color: #FFF;
	top: auto;
	left: auto;
	right: 30px;
	bottom: 30px;
	cursor: pointer;
	border-radius: 2px;
}

body:not(.device-touch) .back-to-top {
	transition: background-color .2s linear;
	-webkit-transition: background-color .2s linear;
	-o-transition: background-color .2s linear;
}

.stretched .back-to-top { bottom: 30px; }

.back-to-top:hover { background-color: #1ABC9C; color: #fff;}