.back-to-top{position:fixed;bottom:0;right:calc(50vw - 612px);padding:16px;background-color:#333;border-radius:50%;z-index:99;margin-bottom:16px;filter:drop-shadow(0 2px 10px rgba(0,0,0,.5));height:56px;color:#999;opacity:0;pointer-events:none;transform:scale(.001);transition:opacity .3s,transform .3s;margin-right:-90px}.back-to-top.is-visible{pointer-events:unset;opacity:1;transform:scale(1)}.back-to-top svg{height:24px;width:24px}.back-to-top:hover{color:#e5e5e5;background-color:#4d4d4d}.back-to-top:hover svg{transform:translateY(-2px)}