body {
  font-family: sans-serif;
  margin: 2rem;
  background-color: #f9f9f9;
}

header {
  background-color: #333;
  color: white;
  padding: 1rem;
  margin-bottom: 2rem;
}

section {
  margin-bottom: 2rem;
}

.command {
  background-color: #fff;
  border: 1px solid #ccc;
  padding: 1rem;
  margin-bottom: 1rem;
  border-radius: 6px;
}

pre {
  background-color: #f4f4f4;
  padding: 0.5rem;
  overflow-x: auto;
}