title: change height of a thead in a table
body: <p>Is there a way to change the height of a <code>thead</code> in a <code>table</code>? I have tried </p>
  
  <pre><code>$('thead').height('2px');
  </code></pre>
  
  <p>but to no avail, the height does not change.</p>
  
  <p>What am I doing wrong? Thanks</p>