body {
    margin: 0;
    padding: 0;
    font-family: 'Arial', sans-serif;
  }
  
  header {
    background-color: navy;
    color: white;
    text-align: center;
    padding: 1em;
  }
  
  header h1 {
    font-family: 'Helvetica', sans-serif;
    font-weight: bold;
    font-size: 2em;
    margin: 0;
  }
  
  nav {
    margin-top: 10px;
  }
  
  nav ul {
    list-style: none;
    padding: 0;
    display: flex;
    justify-content: center;
  }
  
  nav ul li {
    margin: 0 20px;
  }
  
  nav ul li a {
    text-decoration: none;
    color: white;
    font-weight: bold;
    font-size: 1.2em;
  }
  
  .main-section, .about-section, .services-section, .contact-section {
    position: relative;
    height: 500px;
    color: white;
  }
  
  .background-image {
    background: url('https://wallpapercave.com/dwp2x/wp12847452.jpg') center/cover no-repeat fixed;
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0.7;
  }
  
  .content {
    position: relative;
    z-index: 1;
    padding: 2em;
  }
  
  .image-container {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 4px;
  }
  
  .image-container img {
    width: 20%;
    border-radius: 2px;
  }
  
  .subscription-plans {
    background-color: skyblue;
    padding: 2em;
  }
  
  .plans {
    display: flex;
    justify-content: space-around;
    margin-top: 1em;
  }
  
  .plan {
    background-color: white;
    padding: 1em;
    border-radius: 2px;
    text-align: center;
  }
  
  footer {
    background-color: black;
    color: white;
    text-align: center;
    padding: 1em;
  }