<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <title>Video Player</title>
</head>
<body>
  <section>
    <video width="720" height="400" controls>
      <source src="trailer.mp4" type="video/mp4">
      <source src="trailer.webm" type="video/webm">
    </video>
  </section>
</body>
</html>