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1、li:nth-child()索引从1开始。
2、li:nth-child(n)选择全部元素 3、li:nth-last-child(2n)从后开始数起,偶数项
The text was updated successfully, but these errors were encountered:
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1、li:nth-child()索引从1开始。
![9](https://user-images.githubusercontent.com/29729724/36019417-38167ff8-0dba-11e8-9866-e01894322273.PNG)
2、li:nth-child(n)选择全部元素
![10](https://user-images.githubusercontent.com/29729724/36019409-3131675c-0dba-11e8-8782-c1d5ca21f889.PNG)
![11](https://user-images.githubusercontent.com/29729724/36019699-0d8f80f8-0dbb-11e8-907a-bba8551c0d54.PNG)
3、li:nth-last-child(2n)从后开始数起,偶数项
The text was updated successfully, but these errors were encountered: