Your CSS3 example doesn’t appear to be working, but your particular use of text-shadow isn’t really great design. Adding a grey shadow to black text just makes it look blurry.
My rule: only ever add a light shadow to dark text, or a dark shadow to light text. By extension this implies only use text shadow on a coloured background, not pure white or pure black.
Scott
Your CSS3 example doesn’t appear to be working, but your particular use of text-shadow isn’t really great design. Adding a grey shadow to black text just makes it look blurry.
My rule: only ever add a light shadow to dark text, or a dark shadow to light text. By extension this implies only use text shadow on a coloured background, not pure white or pure black.