.scrolltop{position:fixed;right:20px;bottom:50px;-moz-border-radius:10px;-webkit-border-radius:10px;border-radius:10px;display:inline-block;width:40px;height:40px;font-family:'Sans-serif';font-size:3em;text-align:center;text-decoration:none;background-color:rgba(0,0,0,.75);color:#b3b3b3;-moz-box-shadow:0 0 5px 2px #999;-webkit-box-shadow:0 0 5px 2px #999;box-shadow:0 0 5px 2px #999;visibility:hidden;opacity:0;-moz-transition:.5s;-o-transition:.5s;-webkit-transition:.5s;transition:.5s}.scrolltop:visited{color:#b3b3b3}.scrolltop:hover{text-decoration:none;color:#fff}.scrolltop:focus{text-decoration:none}.scrolltop.active{visibility:visible;opacity:1}