## parent_rule property


The CSS rule that contains this declaration block or null if this CSSStyleDeclaration is not attached to a CSSRule.
### Definition:
```python
@property
def parent_rule(self):
    ...
```

### See Also
* module [`aspose.html.dom.css`](../../)
* class [`ICSSRule`](/html/python-net/aspose.html.dom.css/icssrule)
* class [`ICSSStyleDeclaration`](/html/python-net/aspose.html.dom.css/icssstyledeclaration)