Dock
The dock property is used to fix a widget to the edge of a container (which may be the entire terminal window).
Syntax
dock: top|right|bottom|left;
Example
The example below shows a left docked sidebar.
Notice that even though the content is scrolled, the sidebar remains fixed.
=== "Output"
```{.textual path="docs/examples/guide/layout/dock_layout1_sidebar.py" press="pagedown,down,down,_,_,_,_,_"}
```
=== "dock_layout1_sidebar.py"
```python
--8<-- "docs/examples/guide/layout/dock_layout1_sidebar.py"
```
=== "dock_layout1_sidebar.css"
```sass hl_lines="2"
--8<-- "docs/examples/guide/layout/dock_layout1_sidebar.css"
```
CSS
/* Dock the widget on the left edge of its parent container */
dock: left;
Python
# Dock the widget on the left edge of its parent container
widget.styles.dock = "left"