ถามเรื่องการนำเอา html5 video players มาใช้งาน หน่อยครับ

<div class="container">
	<video controls crossorigin playsinline poster="https://cdn.plyr.io/static/demo/View_From_A_Blue_Moon_Trailer-HD.jpg">
		 <source src="https://cdn.plyr.io/static/demo/View_From_A_Blue_Moon_Trailer-576p.mp4" type="video/mp4" size="576">
			<source src="https://cdn.plyr.io/static/demo/View_From_A_Blue_Moon_Trailer-720p.mp4" type="video/mp4" size="720">
			<source src="https://cdn.plyr.io/static/demo/View_From_A_Blue_Moon_Trailer-1080p.mp4" type="video/mp4" size="1080">

			<!-- Caption files -->
			<track kind="captions" label="English" srclang="en" src="https://cdn.plyr.io/static/demo/View_From_A_Blue_Moon_Trailer-HD.en.vtt"
					default>
			<track kind="captions" label="Français" srclang="fr" src="https://cdn.plyr.io/static/demo/View_From_A_Blue_Moon_Trailer-HD.fr.vtt">
			<!-- Fallback for browsers that don't support the <video> element -->
			<a href="https://cdn.plyr.io/static/demo/View_From_A_Blue_Moon_Trailer-576p.mp4" download>Download</a>
	</video>
</div>
<!-- Plyr resources and browser polyfills are specified in the pen settings -->
<script type="text/javascript">
	// Change the second argument to your options:
// https://github.com/sampotts/plyr/#options
const player = new Plyr('video', {captions: {active: true}});

// Expose player so it can be used from the console
window.player = player;

</script>