eo/webm"&gt;
				&lt;source src="cdgQpa1pUUE.mp4" type="video/mp4"&gt;
				&lt;track id="audesc" src="cdgQpa1pUUE.vtt" kind="descriptions" label="English descriptions" srclang="en-us"&gt;&lt;/track&gt;
			&lt;/video&gt;            </pre>
			
      </section>
   </section><section class="tests"><h2>Tests</h2>
      <section class="procedure"><h3>Procedure</h3>
         <p>For each video element used to play a video:</p>
         <ol>
            <li>Check that the video contains a track element of kind descr