<video src="video.mp4" width="640" height="360" controls>
</video>

var video = document.getElementsByTagName('video')[0];
video.addEventListener('ended', function() {
  window.location.;
}, false);

video {
  background-color: #ffffff;
}

<video src="video.mp4" width="640" height="360" autoplay>
</video>

<video controls>
  <source src="video.mp4" type="video/mp4"></source>
  <source src="video.webm" type="video/webm"></source>
  <source src="video.ogv" type="video/ogg"></source>
</video>