Padding for Full Screen (Scalable HTML Content)

Hi there,

I guess there are many of you who hesitate between a scalable and fixed HTML 5 output in Captivate. I am using normal output, not responsive.

I am exporting 1024 x 677 so sometimes the screen is too small if the publish is not scalable.

If I publish scalable then it does not look perfect either

Anyway, what I would like to do is publish scalable but add 10 pixels or so padding that would prevent the project to fill up the screen.

I just want to have a tiny line that surrounds the content.

In which file can this be done?

Thanks

Bobby