• 一个before伪类的超有用应用


    就是在水平菜单的选择项中间加上一竖线当作分隔符。

    <!doctype html>
    <html dir="ltr" lang="zh-CN">
        <head>
            <meta charset="utf-8"/>
            <meta http-equiv="X-UA-Compatible" content="IE=Edge">
            <title>菜单</title>
            <style type="text/css" title="default" media="screen">
                ul { padding:0; margin:0; font:0.9em Verdana; }
                li { display:inline; color:green; }
                li~li:before { content:"|"; padding-right:5px; color:red; }
                li a{ display:block;text-decoration:none;background:#CC99CC;}
                li a{ display:inline;}
            </style>
        </head>  
        <body>
            <ul>
                <li>menu1</li>
                <li><a href="http://www.cnblogs.com/rubylouvre/">menu2</a></li>
                <li>menu3</li>
                <li>menu4</li>
            </ul>
        </body>    
    </html>
    

    或利用相邻选择符加after伪类。

    或利用相邻选择符加after伪类。

    由于IE6不支持,我们可以利用负margin技术变通一下,但还是要多添加一个类……

    <!doctype html>
    <html dir="ltr" lang="zh-CN">
        <head>
            <meta charset="utf-8"/>
            <meta http-equiv="X-UA-Compatible" content="IE=Edge">
            <title>菜单</title>
            <style type="text/css" title="default" media="screen">
                ul { padding:0; margin:0; font:0.9em Verdana; }
                li { display:inline; color:green; padding:0 5px;border-right:1px solid red;margin-left:-1px;}
                li a{ display:block;text-decoration:none;background:#CC99CC;}
                li a{ display:inline;}
                li.last {border-0;}
            </style>
        </head>  
        <body>
            <ul>
                <li>menu1</li>
                <li><a href="http://www.cnblogs.com/rubylouvre/">menu2</a></li>
                <li>menu3</li>
                <li class="last">menu4</li>
            </ul>
        </body>    
    </html>
    

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  • 原文地址:https://www.cnblogs.com/rubylouvre/p/1532757.html
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