<table border="1" style="width:100%;border-collapse:collapse;">
<tr>
<td width="100px" rowspan="3">title</td>
<td colspan="4">name1</td>
<td colspan="23">name2</td>
<td colspan="8">name3</td>
<td colspan="8">name4</td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
</tr>
<tr>
<td colspan="4">name1</td>
<td colspan="23">name2</td>
<td colspan="8">name3</td>
<td colspan="8">name4</td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
</tr>
<tr>
<td colspan="2" >0</td>
<td colspan="2" >1</td>
<td colspan="2" >2</td>
<td colspan="2" >3</td>
<td colspan="2" >4</td>
<td colspan="2" >5</td>
<td colspan="2" >6</td>
<td colspan="2" >7</td>
<td colspan="2" >8</td>
<td colspan="2" >9</td>
<td colspan="2" >10</td>
<td colspan="2" >11</td>
<td colspan="2" >0</td>
<td colspan="2" >1</td>
<td colspan="2" >2</td>
<td colspan="2" >3</td>
<td colspan="2" >4</td>
<td colspan="2" >5</td>
<td colspan="2" >6</td>
<td colspan="2" >7</td>
<td colspan="2" >8</td>
<td colspan="2" >9</td>
<td colspan="2" >10</td>
<td colspan="2" >11</td>
</tr>
</table>
在chrome 62中显示效果正常(name3宽度 == name4宽度),如图:
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在firefox 57.2中显示异常,name4(占4格)和name3(占3.5格)列宽不一致,如图
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解决方法,给table添加'table-layout=fixed'属性
<table border="1" style="table-layout:fixed;width:100%;border-collapse:collapse;">
<tr>
<td width="100px" rowspan="3">title</td>
<td colspan="4">name1</td>
<td colspan="23">name2</td>
<td colspan="8">name3</td>
<td colspan="8">name4</td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
</tr>
<tr>
<td colspan="4">name1</td>
<td colspan="23">name2</td>
<td colspan="8">name3</td>
<td colspan="8">name4</td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
</tr>
<tr>
<td colspan="2" >0</td>
<td colspan="2" >1</td>
<td colspan="2" >2</td>
<td colspan="2" >3</td>
<td colspan="2" >4</td>
<td colspan="2" >5</td>
<td colspan="2" >6</td>
<td colspan="2" >7</td>
<td colspan="2" >8</td>
<td colspan="2" >9</td>
<td colspan="2" >10</td>
<td colspan="2" >11</td>
<td colspan="2" >0</td>
<td colspan="2" >1</td>
<td colspan="2" >2</td>
<td colspan="2" >3</td>
<td colspan="2" >4</td>
<td colspan="2" >5</td>
<td colspan="2" >6</td>
<td colspan="2" >7</td>
<td colspan="2" >8</td>
<td colspan="2" >9</td>
<td colspan="2" >10</td>
<td colspan="2" >11</td>
</tr>
</table>
chrome和firefox显示效果相同
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