W3School TIY
编辑您的代码：
<html> <body> <table width="100%" border="1"> <col span="3" align="center" /> <tr> <th>ISBN</th> <th>Title</th> <th>Price</th> </tr> <tr> <td>3476896</td> <td>My first HTML</td> <td>$53</td> </tr> </table> </body> </html>
查看结果: