You might use a transparent image to control it.
If you use the CSS selector #footer, you can do anything you want:
to set 18px as a top margin.
Personally, I would set it to 1.5em (16px x 1.5) for a distance. It's more than a line height, but enough to indicate it is part of the content.
Thanks! I set it to 18 px using RoboHelp's paragraph settings. It looks good, and was what I needed to know about the amount of space that was appropriate.
Thanks very much! While there was an easier way for this need, I'll keep transparent image in mind - sounds like the sort of tip that may come in very handy sometime, and not something I would have thought of.