Windows smooths fonts, oh yes. In several different ways. Unfortunately, none of these font smoothing mechanisms properly round the edges of CSS fonts embedded using @font-face. This is most visible when using CSS fonts for body text, but it’s bad enough. So do we stop using CSS fonts for body text? No, we show CSS fonts on OSX which renders them properly. Here’s a code snippet care of Chris J. Davis, which will replace your body text font with Arial when on Windows: