title: Get first child of p inside span element
body: <p>I need to get the first child of p elements (being created dynamically through JS and have same id). Basically I want to add a margin-top to the first p child element.</p>
  
  <pre><code>&lt;div class="col-xs-12 col-sm-10 col-sm-offset-1 col-md-8 col-md-offset-2" id="exmkp" style="display:none"&gt;
        &lt;span id="heading"&gt;&lt;/span&gt;
          &lt;p&gt;......&lt;/p&gt;
          &lt;p&gt;......&lt;/p&gt;
  </code></pre>