*{margin:0;padding:0;box-sizing:border-box}body{height:100vh;background:#ffffff;display:flex;align-items:center;justify-content:center}.spinner{width:55px;height:55px;border:4px solid #e0e0e0;border-top:4px solid #00e5ff;border-radius:50%;animation:spin 0.8s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}