I ran into a similar problem with the Google Mobile AdSense animation on iOS Mobile Safari. Basically when you put an absolutely positioned element with higher

I ran into a similar problem with the Google Mobile AdSense animation on iOS Mobile Safari. Basically when you put an absolutely positioned element with higher z-index over the iframed ad, it'll trigger greyscale antialiasing. Here is a demo (see it in Mobile Safari): http://newtonapple.github.com/frontend_tidbits/mobile_safari/iframe_animation_text_rendering_bug/adsense_bug.html http://newtonapple.github.com/frontend_tidbits/mobile_safari...