Control de etiqueta de vídeo

el

<video controls width="720">
  <source src="video/demo.mp4" type="video/mp4">
  <source src="video/demo.webm" type="video/webm">
<div style="border: 1px solid black ; padding: 8px ;">
Sorry, your browser does not support the &lt;video&gt; tag used in this demo.
</div>
</video>