.stopwatch{text-align:center;border:1px solid #ddd;border-radius:16px;width:320px;padding:24px;font-family:sans-serif}.timer{cursor:pointer;background:0 0;border:0;margin-bottom:20px;font-family:monospace;font-size:36px}.controls{justify-content:center;gap:12px;display:flex}.controls button{cursor:pointer;padding:8px 16px}