.spinner{justify-content:center;align-items:center;width:100%;height:100%;display:flex}.circle{border:4px solid #f3f3f3;border-top-color:#3498db;border-radius:50%;width:40px;height:40px;animation:2s linear infinite spin}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}