# Border-title-background
The `border-title-background` style sets the *background* color of the [border_title][textual.widget.Widget.border_title].
## Syntax
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border-title-background: (<color> | auto) [<percentage>];
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## Example
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## CSS
```sass
border-title-background: blue;
```
## Python
```python
widget.styles.border_title_background = "blue"
```
## See also
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