上代码
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8" />
<title>video-Demo</title>
<link href="../lib/video7.4.1/css/video-js.min.css" rel="stylesheet" />
</head>
<body>
<div style="50rem;">
<video id="my-player" class="video-js vjs-big-play-centered vjs-fluid"
controls preload="auto" poster="" data-setup='{}'>
<source src="/lib/video7.4.1/demo.mp4" />
</video>
</div>
<script src="../lib/video7.4.1/js/video.min.js"></script>
<script>
</script>
</body>
</html>