body{font:16px Arial;background:#f4f4f4;margin:0}main{max-width:900px;margin:30px auto;background:#fff;padding:25px;border-radius:8px}input{display:block;width:100%;padding:12px;margin:8px 0;border:1px solid #ccc;border-radius:6px}button{background:#c98208;color:#fff;border:0;padding:11px 16px;border-radius:6px;cursor:pointer}li{padding:10px;border-bottom:1px solid #ddd}