body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    background-color: #f8f9fa;
  }
  
  header {
    background-color: #343a40;
    padding: 20px;
    text-align: center;
  }
  
  header h1 {
    color: white;
    margin: 0;
  }
  
  nav a {
    color: white;
    margin: 0 10px;
    text-decoration: none;
  }
  
  main {
    padding: 40px;
    text-align: center;
  }
  
  footer {
    background-color: #343a40;
    color: white;
    text-align: center;
    padding: 10px;
    position: fixed;
    bottom: 0;
    width: 100%;
  }