html, body {
    margin: 0;
    padding: 0;
  }
  
  body {
    background-color: #9595ab;
  }
  
.topnav {
    display: flex;
    align-items: center;
    background-color: #0e0e3b;
    padding: 0 20px;
    position: sticky;
    top: 0;
    font-family: Arial, sans-serif;
}
  
  .topnav a {
    color: #f2f2f2;
    text-decoration: none;
    padding: 12px 16px;
    transition: background-color 0.3s, color 0.3s;
    font-size: 20px;
    font-family: Arial, sans-serif;
  }
  
  .topnav a:hover {
    background-color: #629584;
    color: #e1f1e7;
    border-radius: 4px;
  }