Side-scrollers aren't the only thing over which the CSS Zen Garden has us ignominiously fawning. Our interest in shadows as a subtle, powerful site enhancement has been wholly renewed thanks to designs like Radu Darvas's Zunflower.
Our recent obsession led to several CSS shadow how-tos, including Ian Andolina's excellent demonstration of the subject; Web Style Sheets CSS tips & tricks at the W3C; Simple CSS drop shadows at evolt.org; Mike Golding's dynamic example; Chris Hester's more-recent demo; Drop Shadow CSS by Lim Chee Aun; The XML Standards Project's fine tutorial; and finally, Dunstan Orchard's Easy CSS drop shadows.