## append_rule {#str}

The appendRule method appends the passed CSSKeyframeRule into the list at the passed key



```python
def append_rule(self, rule):
    ...
```


| Parameter | Type | Description |
| :- | :- | :- |
| rule | str | The rule to be appended, expressed in the same syntax as one entry in the ‘@keyframes’ rule |



### See Also
* module [`aspose.svg.dom.css`](../../)
* class [`ICSSKeyframesRule`](/svg/python-net/aspose.svg.dom.css/icsskeyframesrule)