body {
    font-family: Arial, sans-serif;
    background-color: #f4f4f4;
    color: #333;
    margin: 0;
    padding: 0;
  }
  

  header {
    background-color: #333;
    color: white;
    padding: 20px 0;
    text-align: center;
  }
  
  nav ul {
    list-style-type: none;
    padding: 0;
    margin: 10px 0 0 0;
  }
  
  nav ul li {
    display: inline-block;
    margin: 0 15px;
  }
  
  nav ul li a {
    color: white;
    text-decoration: none;
    font-weight: bold;
  }
  
  nav ul li a:hover {
    text-decoration: underline;
  }
  
  main {
    padding: 20px;
  }
  
  h2, h3 {
    color: #444;
  }
  
  img {
    border: 2px solid #ccc;
    border-radius: 8px;
    margin: 10px;
  }
  
  form {
    margin-top: 20px;
  }
  
  input[type="submit"], input[type="reset"] {
    padding: 10px 20px;
    margin: 10px 5px;
    background-color: #333;
    color: white;
    border: none;
    cursor: pointer;
    border-radius: 5px;
  }
  
  input[type="submit"]:hover, input[type="reset"]:hover {
    background-color: #555;
  }
  
  footer {
    background-color: #222;
    color: white;
    text-align: center;
    padding: 15px 0;
    margin-top: 20px;
  }
  
  footer a {
    color: white;
    text-decoration: underline;
  }
  
  footer a:hover {
    color: #ccc;
  }
  
  div {
    text-align: center;
  }
  
  #chat-container {
    background-color: white;
    padding: 20px;
    border-radius: 8px;
    width: 90%;
    max-width: 600px;
    margin: 20px auto;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
  }
  
  #messages {
    border: 1px solid #ccc;
    height: 200px;
    overflow-y: scroll;
    margin-bottom: 10px;
    padding: 10px;
    background-color: #fafafa;
  }
  
  #chat-form input[type="text"] {
    width: 70%;
    padding: 10px;
    margin-right: 5px;
  }
  
  #chat-form input[type="submit"] {
    padding: 10px 15px;
  }