.scroll-to-top{z-index:1000;position:fixed;top:90%;right:20px;transform:translateY(-50%)}.scroll-to-top__icon{color:#fff;text-align:center;cursor:pointer;background-color:#000;border-radius:50%;width:40px;height:40px;display:inline-block;box-shadow:0 2px 5px #0000004d}