<p><b>注意:</b>目前只有 Chrome 和 Safari 6 支持 dialog 标签。</p> <table border="1"> <tbody><tr> <th>January <dialog open="">This is an open dialog window</dialog></th> <th>February</th> <th>March</th> </tr> <tr> <td>31</td> <td>28</td> <td>31</td> </tr> </tbody></table>