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5b76e0f | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 | # 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
```sass
/* Dock the widget on the left edge of its parent container */
dock: left;
```
## Python
```python
# Dock the widget on the left edge of its parent container
widget.styles.dock = "left"
```
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