html - 如何为表格标题添加底部框阴影

Question

我试图为表格标题添加底部框阴影，但由于某种原因，阴影也出现在侧面。下面是我正在尝试使用的代码。

#customers {
  font-family: "Trebuchet MS", Arial, Helvetica, sans-serif;
  border-collapse: collapse;
  width: 100%;
}

#customers td,
#customers th {
  padding: 8px;
}

#customers th {
  box-shadow: 0 1px 2px 0px grey;
}

<table id="customers">
  <tr>
    <th>Company</th>
    <th>Contact</th>
    <th>Country</th>
  </tr>
  <tr>
    <td>Alfreds Futterkiste</td>
    <td>Maria Anders</td>
    <td>Germany</td>
  </tr>
  <tr>
    <td>Berglunds snabbköp</td>
    <td>Christina Berglund</td>
    <td>Sweden</td>
  </tr>
  <tr>
    <td>Centro comercial Moctezuma</td>
    <td>Francisco Chang</td>
    <td>Mexico</td>
  </tr>
</table>

我正在寻找的是一个带有 blur:2px、spread:0px、y-offset:1px 和 的盒子阴影>x-offset:0px

Answer 1

猜猜这可能就是您正在寻找的内容，我对 box-shadow 进行了一些编辑，并将表格数据 td 和表格头 th 居中为了使其外观好看

#customers {
  font-family: "Trebuchet MS", Arial, Helvetica, sans-serif;
  border-collapse: collapse;
  width: 100%;
}

#customers td,
#customers th {
  padding: 8px;
  /* added */
  text-align: center;
}

#customers th {
  /* edited */
  box-shadow: 0px 2px 0px rgba(128,128,128, .15);
}

<table id="customers">
  <tr>
    <th>Company</th>
    <th>Contact</th>
    <th>Country</th>
  </tr>
  <tr>
    <td>Alfreds Futterkiste</td>
    <td>Maria Anders</td>
    <td>Germany</td>
  </tr>
  <tr>
    <td>Berglunds snabbköp</td>
    <td>Christina Berglund</td>
    <td>Sweden</td>
  </tr>
  <tr>
    <td>Centro comercial Moctezuma</td>
    <td>Francisco Chang</td>
    <td>Mexico</td>
  </tr>
</table>