Please consider this jsFiddle: http://jsfiddle.net/K6pmH/3/
Clicking on the blue box flips it using @keyframes animations and the flip side gets visible. After ~3s it is turned back into its initial position.
This works for me on Firefox (16.0.2) and Safari (6.0 (7536.25)) but fails on Chrome (Chromium 22.0.1229.94 (161065)). I'm on a Mac (10.7.4).
On Chrome, only the flip side is visible (with mirrored text). Nothing happens on click.
Any ideas what I'm missing?