body {
    font-family: 'Arial', sans-serif;
    background-color: #f9f9f9;
    margin: 0;
    padding: 20px;
  }
  
  header {
    background-color: #222;
    color: white;
    padding: 10px;
    border-radius: 8px;
  }
  
  h1 {
    margin: 0;
  }
  
  ul {
    list-style: none;
    padding: 0;
  }
  
  li {
    margin: 10px 0;
    font-size: 18px;
  }
  
  a {
    text-decoration: none;
    color: #0066cc;
  }