我想構(gòu)建一個包含一列的表，該表的內(nèi)容大小完全相同。

我有以下代碼:

table {
  font-size: 16px;
  border-collapse: collapse;
  background-color: #2c3d4b;
  box-shadow: 3px 3px 3px;
  width: 100%;
}
td, th {
  padding: 25px 25px;
  text-align: left;
  border: 1px solid black;
  white-space: nowrap;
}
thead {
  box-shadow: 0 3px 6px black;
  background-color: royalblue;
}

.halfSize {
  width: 60%;
}

.autoSize {
  width: auto;
}

<table>
  <thead>
    <tr>
      <th class="halfSize">Column 1</th>
      <th class="autoSize">Column 2</th>
      <th class="autoSize">Ding</th>
      <th class="autoSize">Column 4</th>
    </tr>
  </thead>
  <tbody>
    <tr>
      <td>Row 1 Column 1</td>
      <td>Row 1 Column 2</td>
      <td>R1</td>
      <td>Row 1 Column 4</td>
    </tr>
  </tbody>
</table>