如何使我的界面仅在一列中发送多个邮件？

Question

我只想在我的界面中填写一个，即用户可以键入多个电子邮件地址。如何使我的界面仅在一列中发送多个邮件？ 我只想在列中合并所有参考电子邮件。为了使我的界面看起来更好。

 <tr>
                      <th>References Email 1</th>
                      <td><input type="text" name="referedstaff1" value="" placeholder="Enter a Email"/> <a title="Enter an appropriate email as references"><img src="css/images/h.png"></a></td>
                    </tr>
                     <tr>
                      <th>References Email 2</th>
                      <td><input type="text" name="referedstaff2" value="" placeholder="Enter a Email"/> <a title="Enter an appropriate email as references"><img src="css/images/h.png"></a></td>
                    </tr>
                     <tr>
                      <th>References Email 3</th>
                      <td><input type="text" name="referedstaff3" value="" placeholder="Enter a Email"/> <a title="Enter an appropriate email as references"><img src="css/images/h.png"></a></td>
                    </tr>
                     <tr>
                      <th>References Email 4</th>
                      <td><input type="text" name="referedstaff4" value="" placeholder="Enter a Email"/> <a title="Enter an appropriate email as references"><img src="css/images/h.png"></a></td>
                    </tr>