.pagetop		{ -webkit-box-sizing:border-box; -moz-box-sizing:border-box; -ms-box-sizing:border-box; box-sizing:border-box;
				  -webkit-border-radius:15px; -moz-border-radius:15px; -ms-border-radius:15px; -o-border-radius:15px; border-radius:15px;
				  position:fixed; right:10px; bottom:5px; display:none; width:30px; height:30px; text-align:center;
				  color:#fff; z-index:10000; background-color:rgba(0,0,0,.7); padding-top:9px; font-weight:bold; }