body {
      margin: 0;
      padding: 0;
      background-color: #000; /* black background */
      color: #fff;
      font-family: Arial, sans-serif;
      line-height: 1.6;
    }
    
    h1, h2, h3, h4 {
      color: #fff;
    }
    p, li {
      color: #ddd;
    }
    .button {
      display: inline-block;
      margin: 10px 5px 20px 0;
      padding: 12px 24px;
      background-color: #007bff;
      color: #fff;
      text-decoration: none;
      border-radius: 4px;
      font-size: 16px;
    }
    .button:hover {
      background-color: #0056b3;
    }
    .section {
      margin-bottom: 40px;
    }
    .image-banner {
      width: 100%;
      max-height: 300px;
      object-fit: cover;
      margin: 20px 0;
      border-radius: 4px;
    }
    ul {
      margin-top: 0;
    }