html引入css - 我可以在不为单个单元格上色的情况下使用CSS来为表格列着色吗?




html和css区别 (6)

以下实现是第n个子选择器,应该可以运行...

<style type="text/css">
    th:nth-child(2),
    th:nth-child(4)
    {
        background-color: rgba(255, 0, 0, 1.0);
    }

    td:nth-child(2), 
    td:nth-child(3),
    td:nth-child(4),
    td:nth-child(6),
    td:nth-child(7)
    {
        background-color: rgba(255, 0, 0, 0.5);
    }
</style>

有没有一种方法可以使列的跨度一直向下着色。 请参阅下面的开始示例:

<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着色方式(更少的代码,非单独的着色),例如,“ Engine”和“ Body”跨度,包括 #DDD 它们下方的所有单元格

<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>


您可以使用CSS3: http://jsfiddle.net/snuggles08/bm98g8v8/ : http://jsfiddle.net/snuggles08/bm98g8v8/

<style>
  .table td:nth-of-type(1) {
    background: red;
  }
  .table td:nth-of-type(5) {
    background: blue;
  }
  .table td:nth-of-type(3) {
    background: green;
  }
  .table td:nth-of-type(7) {
    background: lime;
  }
  .table td:nth-of-type(2) {
    background: skyblue;
  }
  .table td:nth-of-type(4) {
    background: darkred;
  }
  .table td:nth-of-type(6) {
    background: navy;
  }
</style>
Styled table:
<table border="1" class="table">
  <tbody>
    <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>
  </tbody>
</table>
<hr>Unstyled table:
<table border="1" class="table2">
  <tbody>
    <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>
  </tbody>
</table>


我将为此使用 nth-child css伪类:

tr td:nth-child(2), tr th:nth-child(2), tr td:nth-child(3), tr td:nth-child(4), tr th:nth-child(4), tr td:nth-child(6), tr td:nth-child(7){
    background-color: #DDD;
}

tr td:nth-child(2),
tr th:nth-child(2),
tr td:nth-child(3),
tr td:nth-child(4),
tr th:nth-child(4),
tr td:nth-child(6),
tr td:nth-child(7) {
  background-color: #DDD;
}
<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>


我的版本使用nth-child表达式:

使用级联规则的CSS概念首先为单元着色,然后为我想要透明的单元取消着色。 第一个选择器选择第一个选择器之后的所有单元,第二个选择器选择第五个设置为透明的单元。

<style type="text/css">
  /* colored */
  td:nth-child(n+2) { background-color: #ddd }
  /* uncolored */
  td:nth-child(5) { background-color: transparent }
</style>

<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>

检查此有趣的参考: http://learn.shayhowe.com/advanced-html-css/complex-selectors/ : http://learn.shayhowe.com/advanced-html-css/complex-selectors/


这是一个老问题,有很多很好的答案。 只是想添加尚未提及的 -nnth-last-child 选择器。 当将CSS应用于多列但在样式化之前可能不知道列数或具有多个宽度不同的表时,它们很有用。

/* Select the first two */
table tr td:nth-child(-n + 2) {
  background-color: lightblue;
}

/* Select all but the first two */
table tr td:not(:nth-child(-n + 2)) {
    background-color:lightgreen;
}

/* Select last two only */
table tr td:nth-last-child(-n + 2) {
  background-color:mistyrose;
}

/* Select all but the last two */
table tr td:not(:nth-last-child(-n + 2)) {
    background-color:yellow;
}

jsFiddle: https://jsfiddle.net/3rpf5oht/2/ ://jsfiddle.net/3rpf5oht/2/


通常,对单元格进行样式设置最简单(如果需要,可以按列),但是可以用不同的方式对列进行样式设置。 一种简单的方法是将列包装在 colgroup 元素中并在其上设置样式。 例:

<style>
.x {
    background-color: #DDD
}
</style>
<table border="1">
<col>
<colgroup class=x>
  <col>
  <col>
  <col>
</colgroup>
<col>
<colgroup class=x>
  <col>
  <col>
</colgroup>
  <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>





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