body {
  font-family: Arial, sans-serif;
  background-color: #f4f4f4;
  margin: 0;
  padding: 0;
  color: #333;
}

header {
  background-color: #007BFF;
  padding: 15px;
  text-align: center;
  color: white;
}

nav {
  background-color: #eaeaea;
  padding: 10px;
  text-align: center;
}

nav a {
  margin: 0 10px;
  text-decoration: none;
  color: #007BFF;
  font-weight: bold;
}

nav a:hover {
  text-decoration: underline;
}

main {
  padding: 20px;
}

h2, h3 {
  color: #007BFF;
}

h3 {
  margin-bottom: 8px;
}

ul {
  margin-left: 20px;
}

footer {
  text-align: center;
  padding: 10px;
  background-color: #ddd;
  margin-top: 20px;
}