How do I add extra space between columns in a configurable list?

I'd like to add some extra space so that it's easy to determine that there are 2 choices; b/w and color.

Inject the following CSS code inside Configurable list widget CSS area:

.col4{

    padding-left: 30px !important;

}

Example:

Result: https://form.jotform.com/61257712718963 

Let us know if you need more help.