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78 lines
3.0 KiB
Markdown
78 lines
3.0 KiB
Markdown
# Link-hover-background
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The `link-hover-background` sets the background color of the link when the mouse cursor is over the link.
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!!! note
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`link-hover-background` only applies to Textual action links as described in the [actions guide](../../guide/actions.md#links) and not to regular hyperlinks.
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## Syntax
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--8<-- "docs/snippets/syntax_block_start.md"
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link-hover-background: <a href="../../css_types/color"><color></a> [<a href="../../css_types/percentage"><percentage></a>];
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--8<-- "docs/snippets/syntax_block_end.md"
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`link-hover-background` accepts a [`<color>`](../../../css_types/color) (with an optional transparency level defined by a [`<percentage>`](../../../css_types/percentage)) that is used to define the background color of text enclosed in Textual action links when the mouse pointer is over it.
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### Defaults
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If not provided, a Textual action link will have `link-hover-background` set to `$accent`.
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## Example
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The example below shows some links that have their background colour changed when the mouse moves over it and it shows that there is a default color for `link-hover-background`.
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It also shows that `link-hover-background` does not affect hyperlinks.
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=== "Output"
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!!! note
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The GIF has reduced quality to make it easier to load in the documentation.
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Try running the example yourself with `textual run docs/examples/styles/link_hover_background.py`.
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=== "link_hover_background.py"
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```py hl_lines="8-9 12-13 16-17 20-21"
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--8<-- "docs/examples/styles/link_hover_background.py"
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```
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1. This label has an hyperlink so it won't be affected by the `link-hover-background` rule.
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2. This label has an "action link" that can be styled with `link-hover-background`.
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3. This label has an "action link" that can be styled with `link-hover-background`.
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4. This label has an "action link" that can be styled with `link-hover-background`.
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=== "link_hover_background.css"
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```sass hl_lines="2 6 10"
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--8<-- "docs/examples/styles/link_hover_background.css"
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```
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1. This will only affect one of the labels because action links are the only links that this rule affects.
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2. The default behavior for links on hover is to change to a different background color, so we don't need to change anything if all we want is to add emphasis to the link under the mouse.
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## CSS
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```sass
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link-hover-background: red 70%;
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link-hover-background: $accent;
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```
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## Python
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```py
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widget.styles.link_hover_background = "red 70%"
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widget.styles.link_hover_background = "$accent"
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# You can also use a `Color` object directly:
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widget.styles.link_hover_background = Color(100, 30, 173)
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```
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## See also
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- [`link-background`](./link_background.md) to set the background color of link text.
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- [`link-hover-color](./link_hover_color.md) to set the color of link text when the mouse pointer is over it.
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- [`link-hover-style](./link_hover_style.md) to set the style of link text when the mouse pointer is over it.
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