#btt{align-items:center;background-color:#50beff;border-radius:50%;bottom:1rem;display:inline-block;justify-content:center;margin-bottom:12px;margin-right:100px;opacity:0;position:fixed;right:1rem;text-decoration:none;visibility:hidden;width:25px}#btt,#btt span{transition:.2s ease-out}#btt span{color:#fff;font-size:1.5rem}#btt:hover{background-color:#4b73fa}#btt:hover span{transform:translateY(-4px)}#btt:active{background-color:#50beff}#btt.show{opacity:1;visibility:visible}