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### Reproduction link
### Steps to reproduce
由于懒加载，第一个弹出的message是新建的dom节点，此时css动画没有过渡效果
### What is expected?
有动画过渡效果
### What is actually happening?
没有动画过渡效果
### Any …
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### Reproduction link
### Steps to reproduce
配置了 IxMenuSub的overlayClassName，未在dom节点上附加该类名，源码中未实现
### What is expected?
overlayClassName能够配置到overlay节点上
### What is actually happening…
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### Reproduction link
无
### Steps to reproduce
`IxCollapse` 在嵌套使用时，外部 `IxCollapse` 的 `bordless` 会影响内部 `IxCollapse` 的样式
```vue
内容区
…
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### Reproduction link
无
### Steps to reproduce
例子代码如下：
```vue
button 0
button 1
```
### What is expected?
样式按照按钮组显示（边框样式） ：
 of this repository and believe that this is not a duplicate.
## What problem does this feature solve?
`const {…
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~~In a previous version, it worked, but now it doesn't.~~
I just tried it and it doesn't work since `v0.27.27`
in template:
![image](https://user-images.githubusercontent.com/25052421/141400359…
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### Reproduction link
### Steps to reproduce
notification的测试时间需要9s
### What is expected?
建议优化缩短
### What is actually happening?
9s
### Any additional comments? (option…
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### Reproduction link
打开弹窗的时候，会加个垂直滚动条，页面会抖一下
### Steps to reproduce
打开弹窗的时候，会加个垂直滚动条，页面会抖一下
### What is expected?
打开弹窗的时候，页面正常不抖动
### What is actually happening?
打开弹窗的时候，页面抖动
### …
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### Reproduction link
https://idux.site/components/input/zh#InputProps
### Steps to reproduce
![image](https://user-images.githubusercontent.com/16161582/141613199-e59f11e6-ae96-4c43-b26c…
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### Reproduction link
https://idux.site/components/icon/zh
### Steps to reproduce
![image](https://user-images.githubusercontent.com/16161582/141483713-ca23b64e-de5e-4516-947e-57228d4e4ce…