#back-to-top{padding:3px;width:45px;height:45px;border-radius:50%;position:fixed;bottom:50px;right:50px;overflow:hidden;text-align:center;cursor:pointer;background-color:#a9f5f2;border:5px solid #eee;display:block}#back_to_top:hover{cursor:pointer}#back_to_top i{color:#19519b;font-size:28px}