This is a quick CSS3 experiment trying to replicate the Dock of OS X, complete with labels, animations, reflections and indicators. It uses CSS transitions for the magnification effect and the :target pseudo-class and CSS animations for the bouncing effect.
A short note on compatibility: Firefox 4 doesn't support CSS animations but degrades gracefully. Chrome seems to mess up the bounce animation on Windows. Safari (and even MobileSafari) gets the best results on every platform.