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为什么父div没有被撑开_html/css_WEB-ITnose

WBOY
WBOYOriginal
2016-06-24 11:40:241134browse

为什么父div没有被撑开:

在正常情况下,如果父对象没有设置高度,子对象能够将子对象撑开,但是如果子对象浮动且没有清除浮动的话,在IE8或者FF浏览器,父对象并不能够被撑开,在IE6下可以撑开。

代码实例: 

<!DOCTYPE html><html><head><meta charset=" utf-8"><meta name="author" content="http://www.51texiao.cn/" /><title>蚂蚁部落</title><style type="text/css">.parent{  border:1px solid red;  width:500px;}.first,.second{  float:left;  height:100px;  width:100px;  border:1px solid blue}</style></head><body><div class="parent">  <div class="first"></div>  <div class="second"></div></div></body></html>

以上代码在IE6下可以撑开父div,但是在IE8或者FF浏览器下不能够被撑开。解决方法就是清除浮动。代码如下: 

<!DOCTYPE html><html><head><meta charset=" utf-8"><meta name="author" content="http://www.51texiao.cn/" /><title>蚂蚁部落</title><style type="text/css">.parent{  border:1px solid red;  width:500px;  overflow:hidden}.first,.second{  float:left;  height:100px;  width:100px;  border:1px solid blue}</style></head><body><div class="parent">  <div class="first"></div>  <div class="second"></div></div></body></html>

原文地址是:http://www.51texiao.cn/div_cssjiaocheng/2015/0519/1891.html

最原始地址是:http://www.softwhy.com/forum.php?mod=viewthread&tid=4699

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