body {
  font-family: Arial, sans-serif;
  margin: 20px;
  background-color: #f5f5f5;
}
.navbar a {
  margin-right: 20px;
  text-decoration: none;
  color: #333;
}
.content {
  background: #fff;
  padding: 20px;
  border-radius: 8px;
}