@patternfly/patternfly
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Assets, source, tooling, and content for PatternFly 4
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Markdown
id: Backdrop
section: components
cssPrefix: pf-c-backdrop
## Examples
### Basic
```html isFullscreen
<div class="pf-c-backdrop"></div>
```
## Documentation
### Overview
This component puts a backdrop over the entire viewport.
### Usage
| Class | Applied to | Outcome |
| ---------------------- | ---------- | ---------------------------------------------------------------------------------------------------------------------------------------------------------- |
| `.pf-c-backdrop` | `<div>` | Initiates backdrop. **Required** |
| `.pf-c-backdrop__open` | `<body>` | Lock scrolling when backdrop is active. This class should be set on `<body>` while backdrop is active and removed while backdrop is inactive. **Required** |