Re: How to modify font size in modules?
In your browser, "view page source" and check the style tags (div and anchor/link in particular). (Maybe copy some nearby text to paste into the "find" to locate the module code, since there's a lot to wade through in a Tiki page's source view.) That should tell you what CSS selector is responsible. The div is probably box-data and the link may be a.link but I'm not sure off hand.
-- Gary