title: How to use TabBar in UiBinder in GWT or GWTP?
body: <p>I am using GWTP, there is no such <code>RootLayoutPanel</code>, so it's quite difficult to use <code>TabLayoutPanel</code> or I don't know how to use it properly. </p>
  
  <p>I want to change to use something simpler like <code>TabBar</code>; however, I can't find a method on how to use <code>TabBar</code> in <code>UiBinder</code>.</p>
  
  <p>I need a simple Tab with a Tab header &amp; a HTML for each tab. I tried <code>TabPanel</code> before and it worked fine, but <code>TabPanel</code> only supports Quirks mode &amp; it's not good.</p>
  
  <p>Here is the <code>TabBar</code> code I tried:</p>
  
  <pre class="lang-xml prettyprint-override"><code>&lt;g:TabBar&gt;
      &lt;g:tab&gt;
            &lt;g:header&gt;Welcome2 dfddf f dfdf dfdf&lt;/g:header&gt;
            &lt;g:HTMLPanel&gt;Hello tab 2&lt;br /&gt;Good bye!2&lt;/g:HTMLPanel&gt;
      &lt;/g:tab&gt;
  &lt;/g:TabBar&gt;
  </code></pre>
  
  <p>After running it showed error:</p>
  
  <pre><code>Found unexpected child element: &lt;g:tab&gt;
  </code></pre>
  
  <p>How can I use the <code>TabBar</code> properly in <code>UiBinder</code>? If possible, can you provide a very simple example?</p>