Remove Overflow: Visible

I've confirmed this with the ES demo on this site that somewhere in the code it's injecting overflow: visible into the body tag. It's breaking functionality of my mobile menu in my RocketTheme template. Where is it originating from so that I may delete it?



Navigating away from the demo (or going to my frontpage that doesn't have any ES content besides URLs) remedies the problem, so I know it's isolated to ES.