I am trying to get one configureable list widget (#input_276) to be spread across my whole form

I am trying to get one configureable list widget (#input_276) to be spread across my whole form (https://form.jotform.com/201347908771864), but I can't get the CSS to do it correctly. There are only 3 columns, but they still show up as being small text box sizes, but you can't see all of the information in them.

I need some help please.

Are you referring to this configurable list widget?

I checked the form you mentioned and it looks like you successfully extended the text-area width in that configurable list widget.

Let us know if you are referring to something else.