body{font-family:Arial,sans-serif}.scroll-to-top{border-radius:40%;box-shadow:0 4px 8px rgba(0,0,0,.2);border:none;right:20px;line-height:40px;display:none;text-align:center;color:#fff;cursor:pointer;position:fixed;padding:0;height:50px;bottom:20px;font-size:40px;background-color:#7c170d;width:50px}.scroll-to-top i{line-height:normal;vertical-align:middle}.scroll-to-top:hover{background-color:#d82c17}