body {
    font-family: Arial, Helvetica, sans-serif;
    background-color: #f4f4f4;
    color: #333;
    margin: 0;
    padding: 0;
  }
  header {
    background-color: #222;
    color: #fff;
    padding: 20px;
    text-align: center;
  }
  section {
    background-color: #fff;
    margin: 30px auto;
    padding: 25px;
    border-radius: 10px;
    max-width: 900px;
    box-shadow: 0 4px 10px rgba(0,0,0,0.1);
  }
  h2 {
    color: #0073aa;
  }
  img {
    width: 100%;
    max-width: 400px;
    border-radius: 8px;
    margin-bottom: 15px;
  }
  pre {
    background-color: #f0f0f0;
    padding: 15px;
    border-radius: 8px;
    overflow-x: auto;
    font-family: 'Courier New', monospace;
    font-size: 0.95rem;
  }
  p.note {
    font-style: italic;
    color: #555;
  }