div遮不住select下拉列表框的处理方法

 

只要添加下面这段代码到你浮动div的内容最后面，就行了

<iframe src="javascript:false" style="position:absolute; visibility:inherit; top:-20px; left:0px; width:400px; height:200px; z-index:-1; filter='progid:DXImageTransform.Microsoft.Alpha(style=0,opacity=0)';">

</iframe>