.loader{display:none;position:fixed;top:50%;left:50%;transform:translate(-50%,-50%);z-index:9999}.spinner{width:50px;height:50px;border:5px solid rgba(0,0,0,.1);border-top-color:#4CAF50;border-radius:50%;animation:spin 1s linear infinite}@keyframes spin{from{transform:rotate(0deg)}to{transform:rotate(360deg)}}