Product walk through video on an Imac - Please Read Notes

I have made a quick product walkthrough video here. I want to shorten in and have it play automatically in an imac desktop screen. Here is the product video I made: [login to view URL] I want to play it in this exact image of iMac: [login to view URL] I want the video to be on autoplay in HTML5 and play exactly like you see on the homepage of [login to view URL] Once we do this video, I'd like to do others which are similar. Thanks!