css选择器大于号>的作用是什么:
本章节介绍一下CSS选择器中的大于号的作用。由于以前浏览器支持的问题，可能吃选择器较少使用，但是随着时间的推移，版本的更新，兼容性已经不是问题，所以它的应用也就多了起来，下面就通过代码实例做一下简单介绍。
此选择器能够匹配指定元素的所有一级子元素。
代码实例:
<!DOCTYPE html><html> <head> <meta charset=" utf-8"> <meta name="author" content="http://www.softwhy.com/" /> <title>蚂蚁部落</title><style>#box{ width:200px; height: 300px;}#box > div{ width:100px; height:100px; background-color:green; margin:5px; border:1px solid red; font-size:12px; text-align:center;}</style></head><body><div id="box"> <div></div> <div> <div>蚂蚁部落</div> </div></div></body></html> 上面的代码实现了我们的要求，通过>选择器可以设置box元素下第一级子元素的样式。
所以"蚂蚁部落"字符串的容器div没有得到对应的样式设置。
原文地址是:http://www.softwhy.com/forum.php?mod=viewthread&tid=18185
更多内容可以参阅:http://www.softwhy.com/divcss/
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