*{box-sizing:border-box}body{margin:0}::selection{background:#111;color:#fff}@keyframes spin{to{transform:rotate(360deg)}}.step-spinner{width:20px;height:20px;border-radius:50%;border:2px solid #e0e0e0;border-top-color:#111;animation:spin .8s linear infinite;flex-shrink:0}