Video tag keeps zooming in

[thehappyappy]

Please can somebody help me, I’m currently working on a site that has an animation that seems to be causing some zoom issues. When I first go to the site the animation (which is loaded using html5’s video tag) is smaller than its set to but then suddenly resizes to the correct size. But on an iPad, if you leave the browser window and then go back to it, it zooms right into the page and you loose after of the content. Its a strange problem that has baffled me so would be grateful for some help please.

If it helps the page is: http://www.akaillustration.com/testpage.php

I’d be grateful for any help please.