JW email stack - 2 col "units" sizing docs

For Joe Workmans email stacks… I can find no documentation for describing the 1 and 2 column “small” and “large” column “sizing” parameters. Can someone point me to documentation? I see somewhat what is happening but I want to understand it better.

Thanks SteveB…

I’m seeing that an col1/col2 Large sizing of 8/4 will give you a sidebar half the size of the main content (or 33% total width.) If you want the sidebar to break under the main content on mobile a setting of 12/12 in the small sizing will do that.

I guess I don’t understand the Breakpoint setting in the Styles stack. Default is 600 which is the size of my email. The “breakpoint” seems to simply be the width of the email.

Is this documented anywhere that you know of? I can find nothing on 2col setup or discussion of responsive email. I’ve looked at Joe’s doc portal and youtube videos. It’s frustrating to pay $60 for something and not have full documentation. Perhaps I’m wrong and just don’d see it…

Again, thanks SteveB.

I don’t use Foundation…