#scrollUp{background:none repeat scroll 0 0 #333;border-radius:10px;bottom:20px;color:#fff;font-size:30px;opacity:.5;padding:7px 12px;right:20px;-webkit-transition:1s;-moz-transition:1s;-o-transition:1s;transition:1s;outline:none}a#scrollUp:hover{color:#fff;opacity:inherit}