It would be good to remove the font declarations in formalize.css, such as
font: bold 12px/1.2 Arial, sans-serif;. Even though I have a font declaration for body in global.css, formalize.css overrides it for some elements, and then I have to override those elements particularly. It makes it more difficult when using font-your-face for example, as it's not enough to use a font for body, but also for
input[type="submit"] etc (both font-family, font-size and font-weight).