Why the parent div is not stretched:
Under normal circumstances, if the parent object does not set a height, the child object can stretch the child object. However, if the child object floats and the float is not cleared, the parent object cannot be opened in IE8 or FF browser, but it can be opened in IE6.
Code example:
<!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>The above code can expand the parent div under IE6, but cannot be expanded under IE8 or FF browsers. The solution is to clear the float. The code is as follows:
<!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>The original address is: http://www.51texiao.cn/div_cssjiaocheng/2015/0519/1891.html
The original address Yes: http://www.softwhy.com/forum.php?mod=viewthread&tid=4699
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