# Layouts

## Choosing a layout in content

```markdown
---
layout: left_sidebar
---

# Page title

Content...
```

## Layouts in theme.json

```json
{
  "config": {
    "default_template": "full_content"
  },
  "template": {
    "full_content": "full_content.twig",
    "left_sidebar": "left_sidebar.twig",
    "right_sidebar": "right_sidebar.twig",
    "custom1": "custom1.twig",
    "guide": "guide.twig"
  }
}
```

Unknown layouts in frontmatter fall back to `config.default_template`.