So I did this (check out my branch https://github.com/daleee/webmaker.org/tree/webmakerinfobubble/ for an example) but I was no longer getting the intended effect of the event window no longer overlapping the marker. 

Not sure if I'm doing anything wrong. To be honest, it works as intended the way I have it now and I have other bugs to work on so I'd rather not spend more time on this one.