body{background:#0e0e11;color:#eee;font-family:monospace;display:flex;justify-content:center;margin-top:50px}.app{width:600px}input{width:100%;padding:12px;margin:5px 0;background:#1b1b20;color:#fff;border:none}button{padding:10px;background:#2c7df0;border:none;color:#fff;cursor:pointer}#messages{height:400px;overflow-y:auto;background:#141418;padding:10px;margin:10px 0}.msg{margin-bottom:8px}.pub{color:#6ab0ff}.hidden{display:none}