In the demo, when you mouse over the sales chart it creates a jittery effect.
This is because you're setting the position of an element that has a transition with a curve. In effect it's restarting its animation every time you move the mouse, causing it reset its velocity.
A bit off-topic, but does the OS matter? Don't all browsers render the same between OSes? Although I can see them being different in things like font rendering...
This is because you're setting the position of an element that has a transition with a curve. In effect it's restarting its animation every time you move the mouse, causing it reset its velocity.