Need help with containing grid inside of container

I was trying to make a grid contained inside of a container so that it would not stretch out the whole way but only till a certain length. So instead of it looking like this it should look something like that. Any help would be appreciated.

Settings: https://streamable.com/5we3d5

• This topic was modified 1 year, 1 month ago by vandorbusiness.

The page I need help with: [log in to see the link]