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This article is about how CSS uses pseudo-class nth-child. The editor thinks it is very practical, so share it with you as a reference and follow the editor to have a look.

Nth-child is a pseudo class that adds conditions to the selector and allows you to apply the style to the nth (nth) of the child element.

Nth-child is very useful when you want to set the background color alternately so that it can be easily viewed in a table that contains many items.

Let's take a look at how to use nth-child.

Nth-child is described as follows

Element: nth-child (value) {content of style}

In addition to numbers, 2n+1, and some mathematical expressions, even (even number) and so on can be set to values.

Applies only to even numbers: 2n or even

Applies only to odd numbers: 2n+1 or odd

There are other situations. Let's take a look at specific application examples.

First, the HTML code is as follows

List item 1

List item 2

List item 3

List item 4

List item 5

List item 6

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