title: Find span with specific class after input with jquery
body: <p>I would like to ask how to find a span element with a specific class.</p>
  
  <p>The html is like this:</p>
  
  <pre><code>&lt;input type="checkbox" class="checkBox"&gt;
  &lt;span class="one"&gt;One&lt;/span&gt;
  &lt;span class="two"&gt;Two&lt;/span&gt;
  </code></pre>
  
  <p>I am trying like this, but it doesn'work:</p>
  
  <pre><code> $(".checkbox").on('click',function() {
  
                  $(this).closest('span').find('.one').hide();  
              });
  </code></pre>