body{font:16px system-ui;max-width:600px;margin:3rem auto;padding:1rem}label{display:block;margin-top:1rem}input,button{font:inherit;padding:.7rem;width:100%;box-sizing:border-box}button{margin-top:1rem}pre{white-space:pre-wrap;overflow-wrap:anywhere;background:#eee;padding:1rem}