Thanks for the feedback - reason it's a bit buggy is mainly down to the implementation of the animation step-timing. In Firefox, it works as you would expect,

Thanks for the feedback - reason it's a bit buggy is mainly down to the implementation of the animation step-timing. In Firefox, it works as you would expect, stepping through the spriting. In webkit, it's very inconsistent in how it renders, and doesn't look as polished because of this. I've noticed the speed of the animation being effected by the resizing - like mentioned to others, will probably release a version which just shows the animations off separate to the window resizing as well to avoid this. The main reason for including reliance on media queries was to fit it into the mozilla dev derby criteria for this month.