How to make checkboxe lists into three or two columns?

How to make a particular checkbox list into three or two columns?

I have about 15 to 20 lists, so it won’t be good to have them listed in one column, having two or three columns will not consume much space on the page.

Have you tried using one of the list classes in the custom CSS class setting on the appearance tab of the field?

I’ve split the column! Thanks

gf_list_3col

But for the column list, I can’t change the font styles, It uses the form’s label font style