Printable certificate in Captivate

Hi,

I am looking into how to print a certificate from a slide at the end of the module (HTML5), I have come across a couple of things using javascript, which gives a result as shown below:

And also using the print button on a slide (This does not print correctly though, it prints as though it is in the top right corner of the page as shown below)

Does anyone know of a better method to print an actual certificate from a slide, as the window.print(); function just does not seem to work in html5 output.

Any help on thsi would be gratefully appreciated.

Thanks

Paul