.overlay{position:fixed;top:0;left:0;width:100%;height:100%;background-color:rgba(0,0,0,.3);z-index:9999;display:flex;align-items:center;justify-content:center}.loader{border-radius:50%;border:8px solid #f3f3f3;border-top-color:#3498db;width:80px;height:80px;animation:spin 2s linear infinite}@keyframes spin{0%{transform:rotate(0deg)}to{transform:rotate(1turn)}}