Position the content of a dialog

Position the content of a dialog

I'm trying to open up an explanation page of sorts inside a dialog, but would like the explanation page to jump to certain parts of it, much like using old school anchors. I would like to keep the dialog small enough to not obscure page content, as it alters the page content dynamically.

So, my question is, how do I position the inner content of a dialog? Can you use old-fashioned anchor tags to scroll to a certain part of a document within a dialog?

Thanks. I'm stuck