css的after伪对象选择器简单介绍_html/css_WEB-ITnose
css的after伪对象选择器简单介绍:
本章节将会介绍一下after伪对象选择器的用法，希望能够给需要的朋友带来一定的帮助。
此选择器前面要加两个点:或者四个点::，两个点的时候是css2中的写法，在css3中规定是四个点，这是为了和伪类选择器进行区别，当然当前两个点也是适用的。
语法结构:
E:after{ Rules } E::after{ Rules }此选择器能够设置元素内部结尾的一些结构内容 通常和content属性一起使用，关于content可以参阅CSS的content属性一章节。
代码实例:
<!DOCTYPE html> <html> <head> <meta charset=" utf-8"> <meta name="author" content="http://www.softwhy.com/" /> <title>CSS教程</title> <style type="text/css"> .box{ border:1px dotted #CCC; width:200px; height:30px; line-height:30px; text-align:center; font-size:12px;} .box:after{ content:"antzone"; }</style> </head> <body> <div class="box">蚂蚁部落</div> </body> </html>以上代码可以可以再div元素的内部的后面添加指定的内容。
原文地址是:http://www.softwhy.com/forum.php?mod=viewthread&tid=13556
更多内容可以参阅:http://www.softwhy.com/divcss/
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