body {
  font-family: Arial, sans-serif;
  margin: 0;
  background: #f8f9fa;
  color: #333;
}

nav {
  background: #111;
  padding: 15px;
  text-align: center;
}

nav a {
  color: white;
  margin: 0 15px;
  text-decoration: none;
}

section {
  text-align: center;
  padding: 80px 20px;
}

h1 {
  font-size: 36px;
}