Pagebuilder – shadow boxes

Hi

I’ve been trying to remove the shadowboxes that seem to be appearing around any module I use when building in pagebuilder.
here is an example

http://verticalresources.org/ascents/aoraki-mt-cook/

I’ve been trying to edit the CSS of the theme I am using (woothemes – Resort) but to no avail..
Is this something that is likely to be inherent in the pagebuilder plugin and if so where can I go about changing this.

cheers