Stylizing Checkbox List into Two Even Columns

[Bryan_Epstein]

I am working on creating a form in Design Studio and am using a Checkbox List to display a list of areas of interest for our client. Since this format will be used for multiple events and the areas of interest will vary, a checkbox list with values inserted would work better than a multiple-picklist. I've tried calling the individual children labels within the list, but that hasn't worked for me in the same way the other form I have in the screenshot below.

Here is the form that I am working on, which can be previewed at the following link: MKTO Test WP with Alert | Technomic

I'd like to mimic something similar to what I did with a form on a different platform:

[Grégoire_Miche2 · Accepted solution]

Use a styling framework that enable more control on the CSS for Marketo forms:

-Greg