序号 HTML IE<=7 CSS样式 表现: 实际高度 (px) 说明 1 <div></div> 0 啥事没有 2 <div></div> width:100px; 15 触发haslayout 3 <div></div> height:1px; 0 4 <div></div> overflow:hidden; 15 触发haslayout 5 <div></div> width:100px; height:0px; 0 6 <div></div> width:100px; line-height:0px 15 7 <div></div> width:100px; font-size:0; 2 8 <div></div> width:100px; height:0px; line-height:0px; 0 9 <div></div> width:100px; height:0px; font-size:0; 0 10 <div></div> width:100px; height:0px; overflow:hidden; 0 成功 11 <div></div> width:100px; line-height:0px; overflow:hidden 15 12 <div></div> width:100px; font-size:0px; overflow:hidden 2

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