a.back-to-top {
	display: none;
	width: 60px;
	height: 60px;
	text-indent: -9999px;
	position: fixed;
	z-index: 999;
	right: 0px;
	bottom: 53px;
	background:  url(/theme/wolves/images/back_to_top.png) ; background-size:60px 60px; 
	
}
a:hover.back-to-top {
	background: #c69c6d url(/theme/wolves/images/up.png) no-repeat center ;
}