title: jquery selector, closest, siblings combination
body: <p>I have the following html:-</p>
  
  <pre><code>&lt;ul class="nav-list"&gt;
      &lt;li&gt;&lt;a style="cursor:pointer;"&gt;&lt;span class="hello"&gt; &gt;&lt;/span&gt;OVERVIEW&lt;/a&gt; 
          &lt;ul here&gt;
              &lt;li id="Overview"&gt;&lt;a href="/en/overview"&gt;OVERVIEW&lt;/a&gt;
  
  
          &lt;/ul&gt;
      &lt;/li&gt;
  &lt;/ul&gt;
  </code></pre>
  
  <p>I wish to, when click span class hello, the ul here will add a class, and I attempted the following:-</p>
  
  <pre><code>&lt;script&gt;
  $(function(){
      $('.hello').click(function(){
          $(this).siblings().find('ul').addClass('hello');
      })  
  })
  &lt;/script&gt;
  </code></pre>
  
  <p>How shall I handle the sublings, parent and children and find ('ul') in this case?</p>