I’m using a calendar plug-in on a website I’m managing for a charity organization. Everything looks fine except when clicking on dates that contain events. The expanded image for the event info appears mixed in with the footer images and text like below: 
According to the plug-in support, they claim it is due to a z-index issue with the theme footer and not with the calendar plug in. Supposedly I just need to enter in a higher z-index value for the calendar plug in. I’ve tried that and it doesn’t work. Either that or I’m doing it incorrectly.
Any help fixing this is greatly appreciated.
