---
id: Backdrop
section: components
cssPrefix: pf-v5-c-backdrop
---## Examples
### Basic
```html isFullscreen
```
## Documentation
### Overview
This component puts a backdrop over the entire viewport.
### Usage
| Class | Applied to | Outcome |
| -- | -- | -- |
| `.pf-v5-c-backdrop` | `` | Initiates backdrop. **Required** |
| `.pf-v5-c-backdrop__open` | `` | Lock scrolling when backdrop is active. This class should be set on `` while backdrop is active and removed while backdrop is inactive. **Required** |