* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
  }
  
  body {
    font-family: Arial, sans-serif;
    background-color: #f4f4f4;
    color: #333;
  }
  
  header {
    background-color: #222;
    color: #fff;
    padding: 10px 0;
  }
  
  nav ul {
    display: flex;
    justify-content: center;
    list-style-type: none;
  }
  
  nav ul li {
    margin: 0 15px;
  }
  
  nav ul li a {
    color: #fff;
    text-decoration: none;
    font-size: 18px;
  }
  
  nav ul li a:hover {
    text-decoration: underline;
  }
  
  main {
    padding: 20px;
  }
  
  .content-section {
    background-color: #fff;
    border-radius: 8px;
    padding: 20px;
    margin-bottom: 20px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
  }
  
  .content-section h2 {
    color: #333;
    font-size: 24px;
    margin-bottom: 15px;
  }
  
  .content-section p {
    font-size: 16px;
    line-height: 1.6;
    margin-bottom: 20px;
  }
  
  ul {
    list-style-type: none;
  }
  
  ul li {
    margin-bottom: 10px;
  }
  
  ul li a {
    color: #0066cc;
  }
  
  ul li a:hover {
    text-decoration: underline;
  }
  
  table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 20px;
  }
  
  table th, table td {
    padding: 10px;
    border: 1px solid #ddd;
    text-align: left;
  }
  
  table th {
    background-color: #222;
    color: white;
  }
  
  iframe {
    display: block;
    margin: 20px 0;
  }
  
  footer {
    background-color: #222;
    color: white;
    text-align: center;
    padding: 10px 0;
  }
  
  footer p {
    font-size: 14px;
  }
  
  .info-box {
    background-color: #f9f9f9;
    border: 1px solid #ddd;
    border-radius: 8px;
    padding: 15px;
    margin-top: 20px;
  }
  
  .info-box h3 {
    font-size: 20px;
    color: #333;
    margin-bottom: 10px;
  }
  
  .info-box p {
    font-size: 16px;
    color: #555;
  }
  
  @media (max-width: 768px) {
    nav ul {
      flex-direction: column;
      align-items: center;
    }
  
    table th, table td {
      font-size: 14px;
    }
  
    iframe {
      width: 100%;
      height: 315px;
    }
  }
  
  body {
    background-color: #a8d08d; /* Zelená barva pozadí */
    font-family: Arial, sans-serif; /* Volitelně zvolíš font */
    color: #333; /* Barva textu */
    margin: 0;
    padding: 0;
}