title: How is this element being hidden? How to Capture it
body: <p>I am looking for ways on how this HTML element is being hidden.</p>
  <p>The HTML DOM on load looks like this for an example,</p>
  <pre><code>&lt;div class=&quot;&quot;&gt; 
     &lt;header&gt;
         &lt;!----&gt;
         &lt;!----&gt;
         &lt;!----&gt;
     &lt;/header&gt;
  &lt;/div&gt;
  </code></pre>
  <p>After initiating a click event, the HTML DOM changes to this;</p>
  <pre><code>&lt;div class=&quot;container&quot;&gt; 
     &lt;header&gt;
         &lt;!----&gt;
         &lt;div class=&quot;show&quot;&gt;&lt;/div&gt;
         &lt;!----&gt;
     &lt;/header&gt;
  &lt;/div&gt;
  </code></pre>
  <p>Any suggestions on how its doing this? Also, is there a way to capture this live element? I have a click event elsewhere in the DOM that triggers the <strong>show</strong> element, I have also tried the <strong>on</strong> function but it shows as undefined. Bear in mind, this is not my own site.</p>
  <p>I hope this makes sense, thanks let me know If I need to edit or suggest any changes</p>