Ok this question may sound a bit convoluted, or at least esoteric, but I’ll try my best to elucidate.
In my charting application I have a div which is used as a popup tool tip. This tooltip appears when you hover over a datapoint and gives you some information. I used z-index to make the tooltip render above the underlying chart div. However, the underlying chart has interactivity with mouse events, so is it somehow possible to have the underlying chart register mouse events even though the mouse is hovering over the tooltip?
Actually, on browsers that support css3, pointer-events is the simplest solution. 🙂