突出显示表列组

Question

我有一个列，我需要突出显示相邻的列。

对于以下example fiddle：

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<table border="1" style="width:100%;">
  <tbody>
    <tr>
      <th>Number</th>
      <th>First Name</th>
      <th>Last Name</th>
      <th>Points</th>
    </tr>
    <tr>
      <td>1</td>
      <td>Eve</td>
      <td>Jackson</td>
      <td>94</td>
    </tr>
    <tr>
      <td>2</td>
      <td>John</td>
      <td>Doe</td>
      <td>80</td>
    </tr>
    <tr>
      <td>3</td>
      <td>Adam</td>
      <td>Johnson</td>
      <td>67</td>
    </tr>
    <tr>
      <td>4</td>
      <td>Jill</td>
      <td>Smith</td>
      <td>50</td>
    </tr>
  </tbody>
</table>

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我需要在下面的一对列

周围显示额外边框

• Number和First Name
• Last Name和Points

我该怎么做？

任何建议，善良的人？

Answer 1

这可以通过以下方式完成：nth-​​child

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<style type="text/css" scoped>
   table td:nth-child(odd) {
       border-left:red 1px solid;
   }
   table td:nth-child(even) {
       border-right:red 1px solid;
   }
</style>

<table border="1" style="width:100%;">
  <tbody>
    <tr>
      <th>Number</th>
      <th>First Name</th>
      <th>Last Name</th>
      <th>Points</th>
    </tr>
    <tr>
      <td>1</td>
      <td>Eve</td>
      <td>Jackson</td>
      <td>94</td>
    </tr>
    <tr>
      <td>2</td>
      <td>John</td>
      <td>Doe</td>
      <td>80</td>
    </tr>
    <tr>
      <td>3</td>
      <td>Adam</td>
      <td>Johnson</td>
      <td>67</td>
    </tr>
    <tr>
      <td>4</td>
      <td>Jill</td>
      <td>Smith</td>
      <td>50</td>
    </tr>
  </tbody>
</table>

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Answer 2

您可以使用DELETE选择器实现此目的。

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:nth-child

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tr:first-child th:nth-child(1), tr:first-child th:nth-child(2){
   border: 1px solid red;
   border-bottom: 0;
}

tr td:nth-child(1), tr td:nth-child(2){
   border-left: 1px solid red;
   border-right: 1px solid red;
}

tr:last-child td:nth-child(1), tr:last-child td:nth-child(2){
   border-bottom: 1px solid red;
}

tr:first-child th:nth-child(3), tr:first-child th:nth-child(4){
   border: 1px solid green;
   border-bottom: 0;
}

tr td:nth-child(3), tr td:nth-child(4){
   border-left: 1px solid green;
   border-right: 1px solid green;
}

tr:last-child td:nth-child(3), tr:last-child td:nth-child(4){
   border-bottom: 1px solid green;
}

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