<!DOCTYPE html>
<html>
    <head>
        <meta charset="utf-8">
        <title>否定伪类</title>
        <style type="text/css">
            /* 
                否定伪类:
                    :not(选择器)
             */
            p:not(.hello){
                background-color: yellow;
            }
        </style>
    </head>
    <body>
        <p>这是p标签</p>
        <p>这是p标签</p>
        <p>这是p标签</p>
        <p class="hello">这是p标签hello</p>
        <p>这是p标签</p>
        <p>这是p标签</p>
    </body>
</html>

posted on 2021-06-29 15:27 leiyanting 阅读(57) 评论(0) 收藏举报

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