body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    background-color: #e0e4ec;
  }
  
  header {
    background-color: #8f9e85;
    color: #fff;
    text-align: center;
    padding: 20px 0;
  }
  
  nav ul {
    list-style: none;
    padding: 0;
    
  }
  
  nav ul li {
    margin-bottom: 10px;
    text-align: center;
  }
  
  nav ul li a {
    text-decoration: none;
    color: #000000;
    display: block;
    padding: 8px;
    border: 1px solid #ccc;
    border-radius: 5px;
    
  }
  
  nav ul li a:hover {
    background-color: #8ea5cf;
  }
  
  footer {
    text-align: center;
  }

  h3 {
    text-align: center;
  }

  h4 {
    text-align: center;
  }