Center content on a full-width dropdown menu
I am working on the following project: Click here to view website It is being built using Wordpress.
If you hover over the Tailoring link in the top navigation, you will see a drop-down menu with thumbnails. This dropdown menu is powered by a plugin called Ubermenu. I have adjusted the CSS to make the drop-down menu stretch across the full-width of the screen. However the problem is that the content of the drop-down menu is positioned on the left. How can I get the content of the drop-down menu to appear nicely in the center of the page?
Thanks in advance,