title: Why is the <img> tag not closed in HTML?
body: <p>For curiosities sake, why is the &lt;<strong>img</strong>> tag not closed in <strong>HTML</strong>?</p>
  
  <pre><code>&lt;img src="smiley.gif" alt="Smiley face" height="42" width="42"&gt;
  </code></pre>
  
  <p>I also noticed that &lt;<strong>img</strong>> tags are explicitly closed in <strong>XHTML</strong>...</p>
  
  <pre><code>&lt;img src="smiley.gif" alt="Smiley face" height="42" width="42"/&gt;
  </code></pre>
  
  <p><strong>W3Schools:</strong> <a href="http://www.w3schools.com/tags/tag_img.asp" rel="noreferrer">Image Tag</a></p>