日期:2014-05-17 浏览次数:20648 次
<div id="layer1" style="margin:20px; border:1px solid #F88; width:400px; position:relative;"> <div id="layer2" style="position:absolute; left:0; top:0; background-color:#ccc;">Absolute</div> <div style="height:0; overflow:hidden;"></div> <div id="layer3" style="margin:30px auto; width:200px; height:80px; background-color:#36F;">Normal</div> </div>
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http://www.blueidea.com/tech/web/2007/4577.asp
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我也想知道原理