#container{height:100vh;display:flex;justify-content:center;align-items:center;background:#f4f4f4}.spinner{width:50px;height:50px;border:4px solid #e0e0e0;border-top-color:#4f46e5;border-radius:50%;animation:spin 1.5s linear infinite}@keyframes spin{0%{transform:rotate(0deg)}to{transform:rotate(1turn)}}