.scroll-to-top{align-items:center;background-color:#72be46;border:none;border-radius:10px;bottom:20px;color:#fff;cursor:pointer;display:none;font-size:20px;height:60px;justify-content:center;position:fixed;right:20px;transition:opacity .3s ease;width:60px;z-index:1000}.scroll-to-top:hover{background-color:#555}