我有一个div包含一个图像和一些文本，并具有背景颜色。但是，当它在chrome和firefox上渲染时，背景颜色位置不正确并且div内容位于正确的位置，但它在IE8中工作正常，我无法理解可能导致这种情况的原因，它是皇家那里的痛苦我告诉你......
<div style="width:800px;margin-left:auto;margin-right:auto;background-color:yellow;">
<div style="height:30px;">
</div>
<div style="width:400px;height:150px;">
<div style="float:left;padding:none;padding-top:40px;padding-left:30px;">
<img src="warning.jpg" style="float:left;"/>
</div>
<div style="width:300px;float:left;padding-left:10px;padding-right:10px;">
<h6 style="font-family:Palatino Linotype;font-size:12px;">
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</h6>
</div>
</div>
</div>