CSS to format column appearance

I am trying to format the columns on my page to look a little more user-friendly than the typical Knack formatting. On my page, I have two tables that sit side-by-side. I would like to place a border around each table. Anyone have any idea how to do this with CSS?

Thanks very much John!

Hi Peter,

Not sure if this is what you are looking for but I have added some code for you below that might help.

.kn-table-wrapper {
I have also loads of tips and tricks to help style out your app on my app KnackMods. If you haven't already you can sign up following the link below.