.back-to-top{position:absolute;right:50%;margin-top:-15px;height:30px;width:30px;font-size:15px;padding:1px 8px 4px;border-radius:25px;background:white;cursor:pointer;-webkit-box-shadow:2px 2px 5px 0px rgba(0,0,0,1);-moz-box-shadow:2px 2px 5px 0px rgba(0,0,0,1);box-shadow:2px 2px 5px 0px rgba(0,0,0,1)}