Target

Use the target attribute to define the target board to render when using composition.

src/content/docs/example.md

```d2 target="storefront"
# Root board
Content -> Website: Astro

layers: {
  # Board named "starlight" that does not inherit anything from root
  starlight: {
    Documentation -> Website: Starlight
  }

  # Board named "storefront" that does not inherit anything from root
  storefront: {
    E-commerce -> Website: Storefront
  }
}
```

The above code block will be rendered as the following diagram with only the storefront board being visible:

Note

You can use root to target the root board.