.up-button{display:none;position:fixed;bottom:20px;right:30px;z-index:99;border:none;outline:none;background-color:#055f8f;color:#fff;cursor:pointer;padding:15px;border-radius:10px;font-size:18px;transition:opacity .3s ease}.up-button:hover{background-color:#207daf}.up-button img{height:24px;width:24px}