[Font sizes - based on 75%/12px body] 30px = 2.5em 28px = 2.3333em 26px = 2.166667em 24px = 2em 22px = 1.8333em 20px = 1.6667em 18px = 1.5em 16px = 1.333333em 14px = 1.1667em 12px = 1em 11px = .9167em 10px = .8333em
