Remove dropshadow from twenty twelve

Hi,

Following info I’ve been able to glean from these forums I’ve been able to make a child of twenty twelve and make a few changes. I’m currently trying to get rid of the dropshadow around the content area but I’m not sure what I should be looking for in the style sheet.

This is the part I’m trying to get rid of:
https://i.imgur.com/2rf5gPL.jpg

Here’s a link to the site:
https://www.aeronik.com/animation

Thanks!