title: how to change the <header> background color?
body: <p>I'm using theme "b" for my header tag. I tried to change the color But didn't seem to work. </p>
  
  <pre><code>.ui-bar-b{
      background: #054066;
      background-image: -moz-linear-gradient(top, 
                              #054066, 
                              #00578e);
      background-image: -webkit-gradient(linear,left top,left bottom,
          color-stop(0,       #054066),
          color-stop(1,       #00578e));
      -ms-filter: "progid:DXImageTransform.Microsoft.gradient(startColorStr='#00669d', EndColorStr='#00578e')";
  }
  </code></pre>
  
  <p>here is the <a href="http://jsfiddle.net/TmdjC/" rel="nofollow">link</a></p>