表格中的内容随着浏览器大小改变而随之改变呢？

<table   border= "1 "   style= "margin:0px ">
<tr>
        <td> aaa </td>
<td> xxxxxxxxxxxxxxxxxxxxxxxx

xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
xxxxxxxxxxxxxxxxxxxxxxxx
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
          </td>
          <td> ccc </td>
</tr>
<tr>
          <td> bbb </td>
          <td> xxxx </td>
          <td> ddd </td>
</tr>
</table>

<table border= "1 " style= "margin:0px "> 
<tr> 
  <td> aaa </td> 
<td style="word-wrap:break-word;"> xxxxxxxxxxxxxxxxxxxxxxxx 

xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx 
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx 
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx 
xxxxxxxxxxxxxxxxxxxxxxxx 
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx 
  </td> 
  <td> ccc </td> 
</tr> 
<tr> 
  <td> bbb </td> 
  <td> xxxx </td> 
  <td> ddd </td> 
</tr> 
</table>