How to use CSS pseudo-class nth-child
There is a pseudo-class How to use CSS pseudo-class How to use CSS pseudo-class How to use CSS pseudo-class nth-child in CSS. How to use this pseudo-class? The next article will introduce to you how to use the pseudo-class How to use CSS pseudo-class How to use CSS pseudo-class How to use CSS pseudo-class nth-child in CSS. Let’s take a look at the specific content.
How to use CSS pseudo-class How to use CSS pseudo-class How to use CSS pseudo-class nth-child is a pseudo-class that adds conditions to the selector and allows you to apply styles to the nth (nth) child element.
How to use CSS pseudo-class How to use CSS pseudo-class How to use CSS pseudo-class nth-child becomes very useful when you want to alternate background colors for easy viewing in a table with many items.
Let’s take a look at how to use How to use CSS pseudo-class How to use CSS pseudo-class How to use CSS pseudo-class nth-child
How to use CSS pseudo-class How to use CSS pseudo-class How to use CSS pseudo-class nth-child is described as follows
元素:How to use CSS pseudo-class How to use CSS pseudo-class How to use CSS pseudo-class nth-child(值){样式的内容}In addition to numbers, 2n 1 and some mathematics Outside of expressions, even (even), etc. can be set as values.
Applies only to even numbers: 2n or even
Applies only to odd numbers: 2n 1 or odd
There are other situations, let’s look at specific application examples
First the HTML code is as follows
<!DOCTYPE html> <html> <head> <meta charset="utf-8"> <link rel="stylesheet" href="sample.css" type="text/css"> </head> <body> <ul type="square"> <li>列表项目1</li> <li>列表项目2</li> <li>列表项目3</li> <li>列表项目4</li> <li>列表项目5</li> <li>列表项目6</li> </ul> </body> </html>
The running effect is as shown in the figure below
Then use nth - child, and Set it up so that the background color is #add8e6 and only applies to specific list items.
Situation when even number is selected
The value of How to use CSS pseudo-class How to use CSS pseudo-class How to use CSS pseudo-class nth-child is set to even or 2n
CSS code
ul li:How to use CSS pseudo-class How to use CSS pseudo-class How to use CSS pseudo-class nth-child(even){
background-color: skyblue;
}Display the following effect on the browser
When an odd number is selected
The value of How to use CSS pseudo-class How to use CSS pseudo-class How to use CSS pseudo-class nth-child is set to odd or 2n 1
CSS code
ul li:How to use CSS pseudo-class How to use CSS pseudo-class How to use CSS pseudo-class nth-child(odd){
background-color: skyblue;
} displays the following effect on the browser
Select only the first Case of n elements
Enter the item number to be applied to the How to use CSS pseudo-class How to use CSS pseudo-class How to use CSS pseudo-class nth-child value. We enter 3 here.
CSS code
ul li:How to use CSS pseudo-class How to use CSS pseudo-class How to use CSS pseudo-class nth-child(3){
background-color: skyblue;
}The display effect on the browser is as follows
Select the nth and above Element case
n to nth - child Enter the value of the item to start applying. Here is n 4.
CSS code
ul li:How to use CSS pseudo-class How to use CSS pseudo-class How to use CSS pseudo-class nth-child(n+4){
background-color: skyblue;
}The effect when running on the browser is as follows
The above is the detailed content of How to use CSS pseudo-class nth-child. For more information, please follow other related articles on the PHP Chinese website!
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