.loader{border:4px solid #f3f3f3;border-radius:50%;border-top:4px solid #ffffff;width:16px;height:16px;animation:spin 1s linear infinite;display:inline-block;vertical-align:middle}.loader.large{width:32px;height:32px}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}