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    "Apple News Format: 1.7.0 -"
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  "documentType" : "symbol",
  "framework" : "AppleNewsFormat",
  "identifier" : "/documentation/AppleNewsFormat/BackgroundParallax",
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  "title" : "BackgroundParallax"
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# BackgroundParallax

The behavior whereby the background of a component moves slightly slower than a person’s scroll speed.

```
object BackgroundParallax
```

## Discussion

When you apply the `BackgroundParallax` behavior to a component, the background of the component moves slightly more slowly than a person’s scroll speed, as shown in [this video](https://developer.apple.com/apple-news/videos/background-parallax.mp4).

### Example

```json
{
  "components": [
    {
      "role": "container",
      "behavior": {
        "type": "background_parallax"
      },
      "style": {
        "fill": {
          "type": "image",
          "URL": "bundle://image.jpg",
          "fillMode": "cover",
          "verticalAlignment": "top"
        }
      },
      "layout": {
        "minimumHeight": "77.2cw"
      }
    }
  ]
}
```

## Relationships

### Inherits From

[`Behavior`](/documentation/AppleNewsFormat/Behavior)

---

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