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103 lines
2.7 KiB
Markdown
103 lines
2.7 KiB
Markdown
# Align
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The `align` style aligns children within a container.
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Not to be confused with [`content-align`](../content_align).
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## Syntax
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--8<-- "docs/snippets/syntax_block_start.md"
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align: <a href="../../css_types/horizontal"><horizontal></a> <a href="../../css_types/vertical"><vertical></a>;
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align-horizontal: <a href="../../css_types/horizontal"><horizontal></a>;
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align-vertical: <a href="../../css_types/vertical"><vertical></a>;
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--8<-- "docs/snippets/syntax_block_end.md"
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The style `align` takes a [`<horizontal>`](../../css_types/horizontal) followed by a [`<vertical>`](../../css_types/vertical).
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You can specify the alignment of children on both the horizontal and vertical axes at the same time,
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or on each of the axis separately.
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To specify alignment on a single axis, use the respective style and type:
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- `align-horizontal` takes a [`<horizontal>`](../../css_types/horizontal) and does alignment along the horizontal axis; and
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- `align-vertical` takes a [`<vertical>`](../../css_types/vertical) and does alignment along the vertical axis.
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### Values
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#### <horizontal>
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--8<-- "docs/snippets/type_syntax/horizontal.md"
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#### <vertical>
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--8<-- "docs/snippets/type_syntax/vertical.md"
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## Examples
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This example contains a simple app with two labels centered on the screen with `align: center middle;`:
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=== "align.py"
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```python
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--8<-- "docs/examples/styles/align.py"
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```
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=== "align.css"
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```scss hl_lines="2"
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--8<-- "docs/examples/styles/align.css"
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```
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=== "Output"
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```{.textual path="docs/examples/styles/align.py"}
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```
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The next example shows a 3 by 3 grid of containers with text labels.
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Each label has been aligned differently inside its container, and its text shows its `align: ...` value.
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=== "align_all.py"
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```python
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--8<-- "docs/examples/styles/align_all.py"
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```
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=== "align_all.css"
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```css
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--8<-- "docs/examples/styles/align_all.css"
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```
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=== "Output"
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```{.textual path="docs/examples/styles/align_all.py"}
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```
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## CSS
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```sass
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/* Align child widgets to the center. */
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align: center middle;
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/* Align child widget to the top right */
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align: right top;
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/* Change the horizontal alignment of the children of a widget */
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align-horizontal: right;
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/* Change the vertical alignment of the children of a widget */
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align-vertical: middle;
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```
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## Python
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```python
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# Align child widgets to the center
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widget.styles.align = ("center", "middle")
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# Align child widgets to the top right
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widget.styles.align = ("right", "top")
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# Change the horizontal alignment of the children of a widget
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widget.styles.align_horizontal = "right"
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# Change the vertical alignment of the children of a widget
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widget.styles.align_vertical = "middle"
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```
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