有没有一种方法可以一直为列的跨度着色.请参见下面的示例:
<table border="1">
<tr>
<th>Motor</th>
<th colspan="3">Engine</th>
<th>Car</th>
<th colspan="2">Body</th>
</tr>
<tr>
<td>1</td>
<td>2</td>
<td>3</td>
<td>4</td>
<td>5</td>
<td>6</td>
<td>7</td>
</tr>
<tr>
<td>7</td>
<td>1</td>
<td>2</td>
<td>3</td>
<td>4</td>
<td>5</td>
<td>6</td>
</tr>
</table>
我正在寻找一种更好的方法(代码更少,不是单独着色)来上色,例如,"引擎"和"主体"跨度,包括它们下面#DDD
个单元格中的所有单元格
<style>
.color {
background-color: #DDD
}
</style>
<table border="1">
<tr>
<th>Motor</th>
<th colspan="3" class="color">Engine</th>
<th>Car</th>
<th colspan="2" class="color">Body</th>
</tr>
<tr>
<td>1</td>
<td class="color">2</td>
<td class="color">3</td>
<td class="color">4</td>
<td>5</td>
<td class="color">6</td>
<td class="color">7</td>
</tr>
<tr>
<td>7</td>
<td class="color">1</td>
<td class="color">2</td>
<td class="color">3</td>
<td>4</td>
<td class="color">5</td>
<td class="color">6</td>
</tr>
</table>