#scroll_top {
	display: none;
	position: fixed;
	bottom: 55px;
	right: 30px;
	z-index: 1000;
	width: 32px;
	height: 32px;
	background: url('/assets/main/img/scroll-top.png') 50% 50% no-repeat;
	border-radius: 50%;
	opacity: 0.5;
}
#scroll_top:hover {
 	opacity: 1;
}