# Sandbox.UI.PseudoClass.Outro

```csharp
static PseudoClass Outro
```

`:outro` - The element has been marked for deletion, and will be deleted once all CSS transitions on it has stopped.

            Transitions can be started here to gracefully remove the element visually.

Declared in [Sandbox.UI.PseudoClass](/api/Sandbox.UI.PseudoClass).
Assembly: `Sandbox.System`.