body {
  font-family: Arial, sans-serif;
  background: #f4f6f8;
  padding: 2rem;
}
h1 {
  font-size: 1.8rem;
  margin-bottom: 0.5rem;
}
pre {
  background: #fff;
  padding: 1rem;
  border: 1px solid #ccc;
  overflow-x: auto;
  white-space: pre-wrap;
}