*,:after,:before{box-sizing:border-box;margin:0;padding:0}.contenedor-btnSubir{bottom:20px;height:60px;position:fixed;right:20px;width:60px;z-index:10}.btnSubir{background:rgba(0,255,242,.644);border-radius:50%;cursor:pointer;height:0;overflow:hidden;position:relative;transition:.2s;width:0;z-index:10}.btnSubir .material-icons-outlined{color:#fff;font-size:24px;left:50%;pointer-events:none;position:absolute;top:50%;transition:.2s}.show .btnSubir{animation:popup .3s ease-in-out;height:50px;width:50px}.show .material-icons-outlined{transform:translate(-50%,-50%) scale(1)}@keyframes popup{0%{height:0;width:0}50%{height:80px;width:80px}to{height:50px;width:50px}}