I was confused about the content element the guy is using. I couldn't find information on it and as far as I know there wasn't something like this in HTML5. Am I wrong?

iterating code, from this video: http://youtu.be/eOG90Q8EfRo?t=15m1s

<article>
  <header> </header>
  <footer> </footer>
  <content> Is this correct? </content>
</article>
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