body {
    font-family: sans-serif;
    margin: 0;
    padding: 0;
  }
  
  .chat-container {
    padding: 20px;
  }
  
  .chat-box {
    height: 300px;
    overflow-y: scroll;
    border-bottom: 1px solid #ddd;
    margin-bottom: 10px;
    padding-bottom: 10px;
  }
  
  #user-input {
    width: 70%;
    padding: 10px;
    border: 1px solid #ddd;
    border-radius: 5px;
  }
  
  button {
    padding: 10px;
    margin-left: 10px;
    background-color: #4caf50;
    color: #fff;
    border: none;
    border-radius: 5px;
    cursor: pointer;
  }
  
  button:hover {
    background-color: #45a049;
  }