title: jquery select the first lis of each ul
body: <p>I need to select the first lis of each ul in this structure:</p>
  
  <pre><code>&lt;div&gt;
      &lt;ul&gt;
          &lt;li&gt;&lt;/li&gt;
          &lt;li&gt;&lt;/li&gt;
          &lt;li&gt;&lt;/li&gt;
      &lt;/ul&gt;
      &lt;ul&gt;
          &lt;li&gt;&lt;/li&gt;
          &lt;li&gt;&lt;/li&gt;
          &lt;li&gt;&lt;/li&gt;
      &lt;/ul&gt;
  &lt;/div&gt;
  </code></pre>
  
  <p>I have this selector: <code>container.find('div &gt; ul &gt; li:first')</code> but jquery engine parese first <code>div &gt; ul &gt; li</code> and then takes the forst result according to <code>:first</code>. But I want the first li of each ul, something like: <code>div &gt; ul &gt; (li:first)</code>.</p>
  
  <p>How can I solve this?</p>