Cick propogations

Cick propogations

I'm not sure if this is bug is occurring because of jquery specifically, but when I click the back side of a rotateY'ed div the clicks pass through to the next div in inside the body tag instead of registering on the div I'm actually clicking on. Does anyone know what is going on here and how to fix it? 

The problem can be seen here: test.peoples1.com
If you click on Packages in the menu on the left, the sub menu will flip out from behind the main menu, and then if you try to click a sub menu item, it closes the menu because the browser thinks you're clicking on off-canvas-wrapper which closes the menu. Even if I remove the jquery click event from off-canvas-wrapper, click events still pass through this flipped div. 

Thank you for taking a look at this.