#topBtn{border-radius:50%;bottom:30px;display:inline-block;height:50px;opacity:0;position:fixed;right:30px;text-align:center;transition:background-color .3s,opacity .5s,visibility .5s;visibility:hidden;width:50px;z-index:1000}#topBtn svg{left:-3px;position:relative;top:-2px}#topBtn:hover{cursor:pointer}#topBtn:active,#topBtn:hover{background-color:#004712;color:#fff}#topBtn.show{opacity:1;visibility:visible}