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textual/docs/styles/min_height.md
Rodrigo Girão Serrão 196d430582 Style all Textual CSS as 'sass'
Textual CSS is better highlighted in SASS code blocks because the SASS parser seems to be more lenient.
2023-01-09 11:20:04 +00:00

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# Min-height
The `min-height` rule sets a minimum height for a widget.
## Syntax
--8<-- "docs/snippets/syntax_block_start.md"
min-height: <a href="../../css_types/scalar">&lt;scalar&gt;</a>;
--8<-- "docs/snippets/syntax_block_end.md"
The `min-height` rule accepts a [`<scalar>`](../../css_types/scalar) that defines a lower bound for the [`height`](./height) of a widget.
That is, the height of a widget is never allowed to be under `min-height`.
## Example
The example below shows some placeholders with their height set to `50%`.
Then, we set `min-height` individually on each placeholder.
=== "Output"
```{.textual path="docs/examples/styles/min_height.py"}
```
=== "min_height.py"
```py
--8<-- "docs/examples/styles/min_height.py"
```
=== "min_height.css"
```sass hl_lines="13"
--8<-- "docs/examples/styles/min_height.css"
```
1. This won't affect the placeholder because its height is larger than the minimum height.
## CSS
```sass
/* Set the minimum height to 10 rows */
min-height: 10;
/* Set the minimum height to 25% of the viewport height */
min-height: 25vh;
```
## Python
```python
# Set the minimum height to 10 rows
widget.styles.min_height = 10
# Set the minimum height to 25% of the viewport height
widget.styles.min_height = "25vh"
```