body {
      font-family: Arial, sans-serif;
      max-width: 900px;
      margin: 40px auto;
      padding: 0 20px;
      line-height: 1.6em;
      color: #222;
    }
    h1 {
      color: #0078d7;
      margin-bottom: 20px;
    }
    h2 {
      margin-top: 20px;
      color: #0078d7;
    }
    a {
      color: #0078d7;
      text-decoration: underline;
    }