让表格不自动扩展

<style type="text/css">
<!--
td { word-wrap: break-word; word-break: break-all; }
-->
</style>
<table width="500" border="1" cellspacing="1" cellpadding="1">
<!--table width="30%" border="1" cellspacing="1" cellpadding="1"-->
  <tr>
  <td>AAAA</td>
  <td width=300>
 asdfffffffffffffddddddddddddddddddddsxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxddddddddddddddddddddddddddddxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
  </td>
  <td>aaa</td>
  </tr>
  <tr>
  <td>BBBB</td>
  <td>xxxx</td>
  <td>bbbb</td>
  </tr>
</table>