You can't use email client to preview this file!
Try downloading the file and run it from your computer!

You see this either because you're using IE7-8 to open the html file or you try to save the html file or you try to open it with your email client!
IE7-8 is not supported, sorry.
If you're trying to save the page, go to the file menu and save this page as "HTML only" - no images, then re-open the saved file.