.loader{position:fixed;top:0;left:0;width:100%;height:100%;background-color:#00000080;display:none;z-index:9999;justify-content:center;align-items:center}.loader-spinner{width:40px;height:40px;border-radius:50%;border:4px solid #fff;border-top-color:#007bff;animation:spin 1s infinite linear}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}