body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
  }
  nav {
    background-color: #333;
    color: white;
    padding: 10px;
  }
  nav a {
    color: white;
    text-decoration: none;
    margin-right: 15px;
    padding: 5px 10px;
  }
  nav a:hover {
    background-color: #575757;
    border-radius: 5px;
  }
  #content {
    padding: 20px;
  }