html{height:100%;width:100%;position:relative}body{min-height:100%;height:auto;padding-bottom:80px}.wrapper{position:relative}.footer{background:#383838;padding:25px 0;position:absolute;bottom:0;width:100%}#back-top{position:fixed;bottom:80px;right:10px;z-index:550}#back-top a{border-bottom:0 none;display:block;height:70px;text-decoration:none;width:70px}#back-top a span{background:url(../images/img_back_top.jpg) center center no-repeat;display:block;height:70px;-webkit-transition:1s;-moz-transition:1s;transition:1s;width:70px}