body {
    background-image: url('https://img.freepik.com/premium-vector/monochrome-vector-seamless-pattern-speech-bubbles-form-oval-cloud-rectangle_387335-1199.jpg');
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
  }
  
  .chat-container {
    max-width: 600px;
    margin: 20px auto;
    padding: 20px;
    border: 1px solid #ccc;
    border-radius: 5px;
    background-color: #f9f9f9;
  }
  
  .chat-box {
    height: 300px;
    overflow-y: scroll;
    border: 1px solid #ccc;
    padding: 10px;
    margin-bottom: 10px;
  }
  
  input[type="text"] {
    width: calc(100% - 70px);
    padding: 8px;
    margin-right: 10px;
  }
  
  button {
    padding: 8px 16px;
    background-color: #4CAF50;
    color: white;
    border: none;
    border-radius: 3px;
    cursor: pointer;
  }
  
  button:hover {
    background-color: #45a049;
  }