target code snippets in a shortcode

Hi,

Scenario: two columns of tick box items in a form. At smaller breakpoints their column gap is to my liking... at the largest breakpoint I feel it's too far apart (col-lg-12).

Having it set to col-lg-7 would be perfect, but there seems to be no way to directly target that portion of the code because the form is a shortcode.

I tried going directly into WPForms where it allows you to select that segment and apply custom classes. - Did not work.

Then I tried adding this to the custom stylesheet that covers 991 min to 5000 max:

#wpforms-228 .choice-2 depth-1 { 

  margin-left: -400px !important;

  }

...thinking only at this largest display will it bring col #2 closer to col #1 and reduce the gap. No luck!

Any recommendations how to target?

Thank you, using this tool is fairly new to me.