#toTop,#toTopHover{width:51px;height:51px;overflow:hidden}#toTop{display:none;text-decoration:none;position:fixed;bottom:85px;right:10px;border:none;text-indent:100%;background:url(../images/ui.totop.png) left top no-repeat;background-size:51px 102px;z-index:999}#toTopHover{background:url(../images/ui.totop.png) left -51px no-repeat;background-size:51px 102px;display:block;float:left;opacity:0;-moz-opacity:0;filter:alpha(opacity=0)}#toTop:active,#toTop:focus{outline:0}