body {
    font-family: Arial;
    padding: 20px;
    background: #f0f0f0;
  }
  
  #chat {
    height: 300px;
    overflow-y: scroll;
    background: white;
    padding: 10px;
    border: 1px solid #ccc;
  }
  
  input, button {
    padding: 10px;
    margin-top: 10px;
  }