Embed youtube video in quotation

I have a website in HTML stored on github page. There is a line of code that show video:

<section id="home" class="home video-bg" data-vide-bg="media/abc.mp4" data-vide-options="position: 50% 50%">

The video is shown when I test it on my local computer. But on GitHub page it is not, because of GitHub page. Even with small size video. So maybe embedding youtube video would solve it. What should I replace the "media/abc.mp4"? Because the <iframe></iframe> does not work inside the quotations in this case.