title: How to set the thumbnail image on HTML5 video?
body: <p>Is there a way to set thumbnail image on HTML5 video?
  I want to see some pictures before play.
  My code looks like this:</p>
  
  <pre><code>&lt;video width="470" height="255" controls&gt;
      &lt;source src="video.mp4" type="video/mp4"&gt;
      &lt;source src="video.ogg" type="video/ogg"&gt;
      &lt;source src="video.webm" type="video/webm"&gt;
      &lt;object data="video.mp4" width="470" height="255"&gt;
      &lt;embed src="video.swf" width="470" height="255"&gt;
      &lt;/object&gt;
  &lt;/video&gt;
  </code></pre>
  
  <p>Thanks!</p>