From the page: Anti-aliasing helps make text and curved lines look smoother, but can make straight lines appear fuzzy. Notice how the lines on the left are fuzzy, while those on the right are crisp.
On Firefox 5 on Ubuntu 11.04, the left lines are crisp, while the right lines are fuzzy. I haven't tried other browsers or platforms.
I wrote this using WebKit (where it looks as I said) and didn't see the differences in rendering until after I was done. I will add a note about browser rendering differences.
On Firefox 5 on Ubuntu 11.04, the left lines are crisp, while the right lines are fuzzy. I haven't tried other browsers or platforms.