Solved Upgraded to 5, lost two column child boards

I just updated to ver 5 and in doing so, my child boards went back to non-two columns. This seems like this should become a simple setting in the Kunena configuration screens. I would think many users would want their child boards to be in clear and easy columns to read. Here is a screen capture of the default new setup.

Question:
How to make the child boards two columns like they were. I have the custom css used from before.
Live site
www.ipyoa.com/forum/



Thank you:
Hayden

Please try this code in your custom.less

Rich:
That fixed it. You all are so helpful, all the time. Thank you. Here is a fixed picture.

Thank you again.
Hayden