i've been browsing a lot of bearblogs and neocities pages and whatnot recently and i see this everywhere!!!!!
please use at least 16px for your main text. this is the default size in every browser for a reason (well, backwards compatibility, mainly, but still)
it's actually good to make some of the text on your site bigger than that. i would recommend 20px for main content.
EDIT: (sorry for the exasperated tone...)
i would suggest line-height: 1.5 for most body content. you can make it smaller on labels and headings if you like, but seriously. 20px text with 1.5 line height is a million times easier to read
it will look REALLY BIG when you change it but you'll adjust!

































