Is it possible to add a custom progress bar at the top of the screen?

It seems to be working when I put the html in the iFrame.
Is it possible to add a custom progress bar at the top of the screen?

Yes, we do offer progress bar widgets for you to add to your forms:

http://widgets.jotform.com/widget/progress_bar

Here is a guide on How-to-Add-a-Widget-to-your-Form.

Please let us know if you need further assistance in setting it up.