title: hide div when there is no ad impression
body: <p>I am using Adsense on my website. google is giving ad only fo 30% of the pageviews. and for rest of 70% of pageviews it shows a  big white screen.<br>
  I want to smartly handle this 70% case and hide this div or show some other static content. how can I do that?</p>
  
  <pre><code>  &lt;script async src="//pagead2.googlesyndication.com/pagead/js/adsbygoogle.js"&gt;&lt;/script&gt;
  &lt;!-- responsive --&gt;
  &lt;ins class="adsbygoogle"
       style="display:block"
       data-ad-client="ca-pub-9299753465943567"
       data-ad-slot="6570418376"
       data-ad-format="auto"&gt;&lt;/ins&gt;
  &lt;script&gt; 
  (adsbygoogle = window.adsbygoogle || []).push({});
  &lt;/script&gt;
  </code></pre>