#toTop{display:none;text-decoration:none;position:fixed;bottom:300px;right:10px;overflow:hidden;width:55px;height:55px;border:none;text-indent:100%;background:url(../images/top-btn.png) no-repeat left top}#toTopHover{background:url(../images/top-btn.png) no-repeat left -55px;width:55px;height:55px;display:block;overflow:hidden;float:left;}#toTop:active,#toTop:focus{outline:none}