body {
  font-family: Arial, sans-serif;
  margin: 0;
  padding: 20px;
  color: #333;
}

h1 {
  color: navy;
}

h2 {
  color: #555;
}

ul {
  line-height: 1.8;
}

footer {
  margin-top: 40px;
  color: #999;
  font-size: 0.9em;
}