Thanks, John but it's simple stuff, really. Done with a combination of WYSIWYG and manual* BB Code entry, using the [FONT], [SIZE], [SUB], and a few other formatting tags. If only the board had a LaTeX plugin, we could have some real fun. I need to install a TeX extension for Chrome one of these days.
*because WYSIWYG's code result is often...um...inelegant.