controls-autoplay.html

<!DOCTYPE html>
<html>
  <head>
    <meta charset="utf-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1">
    <meta name="viewport" content="width=device-width,initial-scale=1.0">
    <title>auto play video</title>
  </head>
  <body>
    <video id="js-video" width="360" height="240" poster="poster.jpg" controls autoplay>
      <source type="video/mp4" src="SampleVideo_360x240_1mb.mp4">
    </video>

    <input type="button" value="play" onclick="document.getElementById('js-video').play()">
    <input type="button" value="pause" onclick="document.getElementById('js-video').pause()">

    <p>attributes: controls, autoplay</p>

    <address>
      Sample Videos Copyright(c) Sample Video Developers | <a href="http://www.sample-videos.com/">http://www.sample-videos.com/</a>
    </address>
  </body>
</html>