How to use the css attribute: nth-child (n) match to select the nth child element

This article introduces the knowledge about "how to use css attribute:nth-child(n) to match and select the nth sub-element". In the actual case operation process, many people will encounter such difficulties. Next, let Xiaobian lead you to learn how to deal with these situations! I hope you can read carefully and learn something!

Add the second th to 50% of the table width.

The code is as follows:

table tr th:nth-child(2)

the first

the second

the third

Definition:

The:nth-child(n) selector matches the Nth (here selecting the 2nd) child element (here child element th) belonging to its parent element (here tr), regardless of the element type.

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