Thank you for finding this.....although now it is only half-fixed.
Again, this worked 100% fine before the updates, and the updates caused these problems to start. Something about the way that X is being served or in the code of X or something is causing this code to malfunction, when it worked previously.
Taking this code away effectively ruins how the pages were functioning, when they were functioning properly. The box on the left used to be even with the box on the right, they used to be the same height and set up the same way and they would automatically adjust height/width based on the browser window.
Taking away this CSS makes it so they don't automagically adjust.
Can you please do some more sleuthing and figure out what exactly was done to the X update, or the Cornerstone update, that is messing up this code and causing it to malfunction?
Again: this website functioned 100% normally BEFORE the updates. Now, Themeco has changed how a lot of things function and it IS NOT WORKING. Please fix.