5. Simple Navigation

nav {
  border-bottom: 2px solid #000;
  padding-bottom: 12px;
  margin-bottom: 24px;
}

nav a {
  margin-right: 16px;
  font-weight: bold;
}

6. Code Blocks

pre, code {
  font-family: monospace;
  font-size: 16px;
  background: #f5f5f5;
  border: 1px solid #ccc;
  padding: 8px;
  white-space: pre-wrap;
  word-break: break-word;
}

Monospace at 16px — smaller but legible on 300 PPI.