docs/widgets/header.md
A simple header widget which docks itself to the top of the parent container.
!!! note
The application title which is shown in the header is taken from the [`title`][textual.app.App.title] and [`sub_title`][textual.app.App.sub_title] of the application.
The example below shows an app with a Header.
=== "Output"
```{.textual path="docs/examples/widgets/header.py"}
```
=== "header.py"
```python
--8<-- "docs/examples/widgets/header.py"
```
This example shows how to set the text in the Header using App.title and App.sub_title:
=== "Output"
```{.textual path="docs/examples/widgets/header_app_title.py"}
```
=== "header_app_title.py"
```python
--8<-- "docs/examples/widgets/header_app_title.py"
```
| Name | Type | Default | Description |
|---|---|---|---|
tall | bool | True | Whether the Header widget is displayed as tall or not. The tall variant is 3 cells tall by default. The non-tall variant is a single cell tall. This can be toggled by clicking on the header. |
This widget posts no messages.
This widget has no bindings.
This widget has no component classes.
::: textual.widgets.Header options: heading_level: 2