.scroll-to-top-button{z-index:1000;color:#000;cursor:pointer;opacity:0;background-color:#fff;border:2px solid #000;border-radius:50%;justify-content:center;align-items:center;width:50px;height:50px;font-size:24px;transition:opacity .3s,transform .3s;display:flex;position:fixed;bottom:20px;left:20px;transform:translateY(20px);box-shadow:0 4px 8px #0003}.scroll-to-top-button.visible{opacity:1;transform:translateY(0)}.scroll-to-top-button:hover{background-color:#f9edcd}