How to use after and before selectors? Detailed explanation of after and before selectors-CSS Tutorial-php.cn

How to use after and before selectors? Detailed explanation of after and before selectors

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Release： 2018-11-21 17:23:17

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The content of this article is about how to use after and before selectors? The detailed explanation of after and before selectors has certain reference value. Friends in need can refer to it. I hope it will be helpful to you.

In CSS3, we can use the ::before and ::after selectors to add content before or after the element. These two selectors are often used in conjunction with the "content attribute". The most commonly used scenarios are clearing floats and creating small icons.

The code is as follows:

<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head> 
    <title>CSS3 ::before和::after选择器</title>
    <style type="text/css">
        div::before
        {
            content:"php中文网";
        }
    </style>
</head>
<body>
    <div>CSS3教程</div>
</body>
</html>

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As shown in the picture:

How to use after and before selectors? Detailed explanation of after and before selectors

Analysis:

::before and:: The two after selectors work with the content attribute to insert content, pictures, multimedia, etc. before or after the element. These two selectors are very useful and can even be used to design various small icons:

How to use after and before selectors? Detailed explanation of after and before selectors

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