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# Layout
The `layout` style defines how a widget arranges its children.
## Syntax
--8<-- "docs/snippets/syntax_block_start.md"
layout: grid | horizontal | vertical;
--8<-- "docs/snippets/syntax_block_end.md"
The `layout` style takes an option that defines how child widgets will be arranged, as per the table shown below.
### Values
| Value | Description |
| -------------------- | ----------------------------------------------------------------------------- |
| `grid` | Child widgets will be arranged in a grid. |
| `horizontal` | Child widgets will be arranged along the horizontal axis, from left to right. |
| `vertical` (default) | Child widgets will be arranged along the vertical axis, from top to bottom. |
See the [layout](../guide/layout.md) guide for more information.
## Example
Note how the `layout` style affects the arrangement of widgets in the example below.
To learn more about the grid layout, you can see the [layout guide](../guide/layout.md) or the [grid reference](./grid/index.md).
=== "Output"
```{.textual path="docs/examples/styles/layout.py"}
```
=== "layout.py"
```python
--8<-- "docs/examples/styles/layout.py"
```
=== "layout.tcss"
```css hl_lines="2 8"
--8<-- "docs/examples/styles/layout.tcss"
```
## CSS
```css
layout: horizontal;
```
## Python
```python
widget.styles.layout = "horizontal"
```
## See also
- [Layout guide](../guide/layout.md).
- [Grid reference](./grid/index.md).
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