css counter-increment属性怎么用

nbsp;html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">


<style style="color:#f60; text-decoration:underline;" href="https://www.php.cn/zt/15716.html" target="_blank">css">
    body {counter-reset:section;}
    h1 {counter-reset:subsection;}
    h1:before
    {
    counter-increment:section;
    content:"Section " counter(section) ". ";
    }
    h2:before 
    {
    counter-increment:subsection;
    content:counter(section) "." counter(subsection) " ";
    }
</style>

    <p><b>注释：</b>如果已规定 !DOCTYPE，那么 Internet Explorer 8 （以及更高版本）支持 counter-increment 属性。</p>
    
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