Create Fullscreen HTML5 Background Video

Adding a Background Video to your website is pretty easy with HTML5 Video tag.

<div class="video_container">
<video autoplay loop poster="includes/sample.jpg" id="vid">
<source src="includes/sample.webm" type="video/webm">
<source src="includes/sample.mp4" type="video/mp4">
</video>
</div>

This video will autoplay and will be played in a loop. Keep in mind that this is an HTML5 feature, so older browsers won’t support this feature.

To make the video full screen, add the following css:

.video_container {
position: relative;
bottom: 0%;
left: 0%;
height: 100%;
width: 100%;
overflow: hidden;
}
#vid{
width: 100%;
}

Now you have a fullscreen HTML5 Background Video.