body{font:16px system-ui,sans-serif;max-width:55rem;margin:3rem auto;padding:0 1rem;color:#18212b}label{display:block;margin:.75rem 0}input,button{font:inherit;padding:.45rem}pre{background:#f3f5f7;padding:1rem;overflow:auto;max-height:18rem}button{cursor:pointer}