## parent_rule property


If this rule is contained inside another rule (e.g. a style rule inside an @media block), this is the containing rule. If this rule is not nested inside any other rules, this returns null.
### Definition:
```python
@property
def parent_rule(self):
    ...
```

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