# Cover

<!-- START TOKEN(Autogenerated block API docs) -->
Add an image or video with a text overlay.

- **Name:** `core/cover`
- **Category:** [media](https://developer.wordpress.org/block-editor/reference-guides/core-blocks/core-blocks-media/)
- **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)

## 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 |
|-----------|------|---------|-------------|
| `url` | `string` | — | [Role](https://developer.wordpress.org/block-editor/reference-guides/block-api/block-attributes/#role): `content` |
| `useFeaturedImage` | `boolean` | `false` | — |
| `id` | `number` | — | — |
| `alt` | `string` | `""` | — |
| `hasParallax` | `boolean` | `false` | — |
| `isRepeated` | `boolean` | `false` | — |
| `dimRatio` | `number` | `100` | — |
| `overlayColor` | `string` | — | — |
| `customOverlayColor` | `string` | — | — |
| `isUserOverlayColor` | `boolean` | — | — |
| `backgroundType` | `string` | `"image"` | — |
| `focalPoint` | `object` | — | — |
| `minHeight` | `number` | — | — |
| `minHeightUnit` | `string` | — | — |
| `gradient` | `string` | — | — |
| `customGradient` | `string` | — | — |
| `contentPosition` | `string` | — | — |
| `isDark` | `boolean` | `true` | — |
| `templateLock` | `string \| boolean` | — | [Enum](https://developer.wordpress.org/block-editor/reference-guides/block-api/block-attributes/#enum-validation): `all`, `insert`, `contentOnly`, `false` |
| `tagName` | `string` | `"div"` | — |
| `sizeSlug` | `string` | — | — |
| `poster` | `string` | — | [Source](https://developer.wordpress.org/block-editor/reference-guides/block-api/block-attributes/#value-source): `attribute`. [Selector](https://developer.wordpress.org/block-editor/reference-guides/block-api/block-attributes/#value-source): `video`. [HTML attr](https://developer.wordpress.org/block-editor/reference-guides/block-api/block-attributes/#attribute-source): `poster` |

## Supports

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

- [`anchor`](https://developer.wordpress.org/block-editor/reference-guides/block-api/block-supports/#anchor): `true`
- [`align`](https://developer.wordpress.org/block-editor/reference-guides/block-api/block-supports/#align): `true`
- [`html`](https://developer.wordpress.org/block-editor/reference-guides/block-api/block-supports/#html): `false`
- [`shadow`](https://developer.wordpress.org/block-editor/reference-guides/block-api/block-supports/#shadow): `true`
- [`spacing`](https://developer.wordpress.org/block-editor/reference-guides/block-api/block-supports/#spacing):
  - `padding`: `true`
  - `margin`: `["top","bottom"]`
  - `blockGap`: `true`
- [`color`](https://developer.wordpress.org/block-editor/reference-guides/block-api/block-supports/#color):
  - [`heading`](https://developer.wordpress.org/block-editor/reference-guides/block-api/block-supports/#color-heading): `true`
  - [`text`](https://developer.wordpress.org/block-editor/reference-guides/block-api/block-supports/#color-text): `true`
  - [`background`](https://developer.wordpress.org/block-editor/reference-guides/block-api/block-supports/#color-background): `false`
  - [`enableContrastChecker`](https://developer.wordpress.org/block-editor/reference-guides/block-api/block-supports/#color-enablecontrastchecker): `false`
- [`dimensions`](https://developer.wordpress.org/block-editor/reference-guides/block-api/block-supports/#dimensions):
  - `aspectRatio`: `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`
- [`layout`](https://developer.wordpress.org/block-editor/reference-guides/block-api/block-supports/#layout):
  - [`allowJustification`](https://developer.wordpress.org/block-editor/reference-guides/block-api/block-supports/#layout-allowjustification): `false`
- [`interactivity`](https://developer.wordpress.org/block-editor/reference-guides/block-api/block-supports/#interactivity):
  - `clientNavigation`: `true`
- [`filter`](https://developer.wordpress.org/block-editor/reference-guides/block-api/block-supports/#filter):
  - [`duotone`](https://developer.wordpress.org/block-editor/reference-guides/block-api/block-supports/#filter-duotone): `true`
- [`allowedBlocks`](https://developer.wordpress.org/block-editor/reference-guides/block-api/block-supports/#allowedblocks): `true`

## Context

_Defined via the [`usesContext` and `providesContext`](https://developer.wordpress.org/block-editor/reference-guides/block-api/block-context/) properties in block.json._

**Uses context:**

- `postId`
- `postType`

## CSS Selectors

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

- **filter**:
  - duotone: `.wp-block-cover > .wp-block-cover__image-background, .wp-block-cover > .wp-block-cover__video-background`

## 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:cover {"url":"data:image/jpeg;base64,/9j/2wBDAAMCAgICAgMCAgIDAwMDBAYEBAQEBAgGBgUGCQgKCgkICQkKDA8MCgsOCwkJDRENDg8QEBEQCgwSExIQEw8QEBD/yQALCAABAAEBAREA/8wABgAQEAX/2gAIAQEAAD8A0s8g/9k=","dimRatio":40} -->
<div class="wp-block-cover">
    <img class="wp-block-cover__image-background" alt="" src="data:image/jpeg;base64,/9j/2wBDAAMCAgICAgMCAgIDAwMDBAYEBAQEBAgGBgUGCQgKCgkICQkKDA8MCgsOCwkJDRENDg8QEBEQCgwSExIQEw8QEBD/yQALCAABAAEBAREA/8wABgAQEAX/2gAIAQEAAD8A0s8g/9k=" data-object-fit="cover" />
    <span aria-hidden="true" class="wp-block-cover__background has-background-dim-40 has-background-dim"></span>
    <div class="wp-block-cover__inner-container">
		<!-- wp:paragraph {"align":"center","placeholder":"Write title…","fontSize":"large"} -->
		<p class="has-text-align-center has-large-font-size">
			Guten Berg!
		</p>
		<!-- /wp:paragraph -->
	</div>
</div>
<!-- /wp:cover -->
```

## Source

- [block.json](https://github.com/WordPress/gutenberg/tree/trunk/packages/block-library/src/cover/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/cover/) — browse `edit.js`, `save.js`, `index.php`, and more.

<!-- END TOKEN(Autogenerated block API docs) -->