body{font:16px system-ui;margin:20px;color:#20322b;background:#eef2f1}h1{font-size:24px}h2{font-size:18px}label{display:block;margin:14px 0}button{padding:9px;margin:5px}select{padding:8px}.views{display:flex;gap:20px;align-items:flex-start;flex-wrap:wrap}canvas{display:block;background:#d5dfd9;max-width:100%;height:auto}pre{white-space:pre-wrap;font-size:12px;max-height:440px;overflow:auto}.controls{margin-bottom:12px}