title: How to find empty elements in html5
body: <p>What is empty element in html 5 ? </p>
  
  <p>From the below options how can I find out empty elements?</p>
  
  <pre><code>1. &lt;br/&gt;
  2. &lt;p&gt; &lt;/p&gt;
  3. &lt;/img&gt;
  4. &lt;/p&gt;
  </code></pre>
  
  <p>Thanks in advance</p>