Use the HTML5 video element to embed video in your website. For example:

<video src="video.mp4" width="320" height="240"></video>

You can also provide multiple sources, to add support for the different video formats like h.264, WebM or Ogg:

<video width="320" height="240">
	<source type="video/mp4"  src="video.mp4" />
	<source type="video/webm" src="video.webm" />
	<source type="video/ogg"  src="video.ogv" />
</video>

Use the HTML5 audio element to embed MP3 files in your website. For example:

<audio src="audio.mp3" type="audio/mp3"></audio>