Setting minimum width for whole site

I’m using the Wix Studio Editor.

Because it seems to be not possible to have direct influence of what layout information gets applied below 320px of width, I’m looking for a way to set a minimum width of 320px for the whole site.

I understood that the last breakpoint reaches down to 320px.
I tried different css settings, but had no luck.
I tried to add different containers etc. with min-width but had no luck.

Thanks a lot.

Welcome to the community Sidecar!

May I ask why you need a smaller breakpoint than 320px? I only ask because 320px is basically the standard for mobile design as no mobile screens are smaller than this size.

Thanks, Nathan.