#back-to-top{position:fixed;right:50px;bottom:50px;background-color:#f7f8f9;border:0;padding:0;width:39px;height:39px;display:flex;align-items:center;justify-content:center;opacity:0;visibility:hidden;transition:all .3s;cursor:pointer;z-index:10}#back-to-top.visible{opacity:100;visibility:visible}#back-to-top:hover,#back-to-top:focus{background-color:#00c0fe}#back-to-top:hover .top-arrow,#back-to-top:focus .top-arrow{stroke:white}@media(max-width:600px){#back-to-top{bottom:20px;right:20px}}