body {
    font-family: Arial, sans-serif;
    background-color: #f0f0f0;
    color: #333;
  }
  h1 {
    text-align: center;
  }
  ul {
    list-style-type: none;
    padding: 0;
    max-width: 600px;
    margin: 0 auto;
  }
  li {
    margin: 5px 0;
  }
  a {
    text-decoration: none;
    color: #0066cc;
  }
  a:hover {
    text-decoration: underline;
  }