x
 
<html>
<body>
<p>请适当缩小浏览器窗口,就可以看到该属性的效果:</p>
<p>换行的表格:</p>
<table border="1">
  <tr>
    <th>Company in USA</th>
    <th>--------------------- Address --------------------</th>
  </tr>
  <tr>
    <td>Apple, Inc.</td>
    <td>1 Infinite Loop Cupertino, CA 95014</td>
  </tr>
  <tr>
    <td>Google, Inc.</td>
    <td>1600 Amphitheatre Parkway Mountain View, CA 94043</td>
  </tr>
</table>
<p>不换行的表格:</p>
<table border="1">
  <tr>
    <th>Company in USA</th>
    <th style="white-space:nowrap">--------------------- Address --------------------</th>
  </tr>
  <tr>
    <td>Apple, Inc.</td>
    <td>1 Infinite Loop Cupertino, CA 95014</td>
  </tr>
  <tr>
    <td>Google, Inc.</td>
    <td>1600 Amphitheatre Parkway Mountain View, CA 94043</td>
  </tr>
</table>
</body>
</html>