高度坍塌:浮动元素布局导致的问题

高度坍塌的根源:浮动盒子脱离了常规流,因此常规流盒子进行高度计算时,不会考虑浮动盒子的高度。

 

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            width:100px;
            margin:10px;
            float:left;
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