Occasionally I want to footnote a post, and I'd like to make the size of the footnote smaller than the main text. I've tried to use the font tag like this: [font size="-2"]Footnote[/font]. Of course those would be GT/LT signs rather than braces. That doesn't take.
Am I correct in assuming I have to do something with the style sheet to allow me to do this? How hard might it be?
See, for example, today's post at http://linkmeister.com/wordpress/2013/04/texas-fertilizer-plant/. The photo caption would ideally be in a smaller font to identify the maker of the map.