@wordpress/block-library/src/heading/README.md

Block library for the WordPress editor.

# Heading

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Introduce new sections and organize content to help visitors (and search engines) understand the structure of your content.

- **Name:** `core/heading`
- **Category:** [text](https://developer.wordpress.org/block-editor/reference-guides/core-blocks/core-blocks-text/)
- **API Version:** [3](https://developer.wordpress.org/block-editor/reference-guides/block-api/block-api-versions/)
- **Block Type:** [Hybrid](https://developer.wordpress.org/block-editor/getting-started/fundamentals/static-dynamic-rendering/) (static save + server enhancements)
- **Keywords:** `title`, `subtitle`

## Attributes

_Defined via the [`attributes`](https://developer.wordpress.org/block-editor/reference-guides/block-api/block-attributes/) property in block.json._

| Attribute | [Type](https://developer.wordpress.org/block-editor/reference-guides/block-api/block-attributes/#type-validation) | [Default](https://developer.wordpress.org/block-editor/reference-guides/block-api/block-attributes/#default-value) | Description |
|-----------|------|---------|-------------|
| `content` | `rich-text` | — | [Source](https://developer.wordpress.org/block-editor/reference-guides/block-api/block-attributes/#value-source): `rich-text`. [Selector](https://developer.wordpress.org/block-editor/reference-guides/block-api/block-attributes/#value-source): `h1,h2,h3,h4,h5,h6`. [Role](https://developer.wordpress.org/block-editor/reference-guides/block-api/block-attributes/#role): `content` |
| `level` | `number` | `2` | — |
| `levelOptions` | `array` | — | — |
| `placeholder` | `string` | — | — |

## Supports

_Defined via the [`supports`](https://developer.wordpress.org/block-editor/reference-guides/block-api/block-supports/) property in block.json._

- [`align`](https://developer.wordpress.org/block-editor/reference-guides/block-api/block-supports/#align): `"wide"`, `"full"`
- [`anchor`](https://developer.wordpress.org/block-editor/reference-guides/block-api/block-supports/#anchor): `true`
- [`className`](https://developer.wordpress.org/block-editor/reference-guides/block-api/block-supports/#classname): `true`
- [`splitting`](https://developer.wordpress.org/block-editor/reference-guides/block-api/block-supports/#splitting): `true`
- [`color`](https://developer.wordpress.org/block-editor/reference-guides/block-api/block-supports/#color):
  - [`gradients`](https://developer.wordpress.org/block-editor/reference-guides/block-api/block-supports/#color-gradients): `true`
  - [`link`](https://developer.wordpress.org/block-editor/reference-guides/block-api/block-supports/#color-link): `true`
- [`spacing`](https://developer.wordpress.org/block-editor/reference-guides/block-api/block-supports/#spacing):
  - `margin`: `true`
  - `padding`: `true`
- [`typography`](https://developer.wordpress.org/block-editor/reference-guides/block-api/block-supports/#typography):
  - [`fontSize`](https://developer.wordpress.org/block-editor/reference-guides/block-api/block-supports/#typography-fontsize): `true`
  - [`lineHeight`](https://developer.wordpress.org/block-editor/reference-guides/block-api/block-supports/#typography-lineheight): `true`
  - [`textAlign`](https://developer.wordpress.org/block-editor/reference-guides/block-api/block-supports/#typography-textalign): `true`
  - `fitText`: `true`
- [`interactivity`](https://developer.wordpress.org/block-editor/reference-guides/block-api/block-supports/#interactivity):
  - `clientNavigation`: `true`

## Block Markup

This is a [**hybrid block**](https://developer.wordpress.org/block-editor/getting-started/fundamentals/static-dynamic-rendering/). It saves static markup that the server may enhance during rendering.

```html
<!-- wp:heading {"level":2} -->
<!-- Content... -->
<!-- /wp:heading -->
```

## Source

- [block.json](https://github.com/WordPress/gutenberg/tree/trunk/packages/block-library/src/heading/block.json) ([reference](https://developer.wordpress.org/block-editor/reference-guides/block-api/block-metadata/))
- [Source directory](https://github.com/WordPress/gutenberg/tree/trunk/packages/block-library/src/heading/) — browse `edit.js`, `save.js`, `index.php`, and more.

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