Pure CSS3 Super Mario Bitmap Graphics
From the original demo -
The piCSSelz (see what I did there) are drawn with CSS gradients sized precisely to pixel boundaries. There are certainly more practical uses for this technique, but none quite as nostalgic. Stay tuned for more examples, wider support and a code generator!
I have added the vendor prefixed version of some of the CSS3 properties that were missing. Let not the jumbo sized code (about half mb, especially due to vendor prefixes versions of the huge linear-gradients used) irritate you :P