表格
<table>
<caption>标题</caption>
<thead>
<tr>
<th>标题一</th>
<th>标题二</th>
</tr>
</thead>
<tbody>
<tr>
<td>内容一</td>
<td>内容二</td>
</tr>
</tbody>
<tfoot>
<tr>
<td>表脚一</td>
<td>表脚二</td>
</tr>
</tfoot>
</table>
指定列宽
<table>
<tr>
<th>head1</th>
<th>head2</th>
<th>head3</th>
</tr>
<tr>
<td>11</td>
<td>12</td>
<td>13</td>
</tr>
<tr>
<td colspan="3">2</td>
</tr>
<tr>
<td rowspan="2">3</td>
<td>311</td>
<td>312</td>
</tr>
<tr>
<td>321</td>
<td>322</td>
</tr>
</table>
使用colgroup和col指定列样式
<table>
<colgroup>
<col span="1" style="background-color:red">
<col span="1" style="width: 100px">
<col style="background-color:yellow">
</colgroup>
<tr>
<th>标题一</th>
<th>标题二</th>
<th>标题三</th>
</tr>
<tr>
<td>a</td>
<td>b</td>
<td>c</td>
</tr>
</table>
使用scope暗示th是啥
<table>
<thead>
<tr>
<td></td>
<th scope="col">标题一</th>
<th scope="col">标题二</th>
</tr>
</thead>
<tbody>
<tr>
<th scope="row">标题三</th>
<td></td>
<td></td>
</tr>
<tr>
<th scope="row">标题四</th>
<td></td>
<td></td>
</tr>
</tbody>
</table>
原文:https://www.cnblogs.com/ye-hcj/p/10355673.html