Distance between radio controls at Display mode

Hi all,

I am using SharePoint 2019 and Nintex Forms 2019 (V.5.1.2.0).  In my form, there are one table (constructed into a rich text field) and several radio controls with two options, that are configured in Nintex Forms in two columns with "Column alignment" to "Fixed.

The problem:  When I select Edit mode, the distance between radio controls are the same that I have configured, but when I select Display mode the options of the radio controls presents one near other.

In my case, the solution presented by chenshien_lin (11-27-2017), do not work fine, because the table is also affected by the CSS

The question: Is there a way to change the CSS only of the radio controls?

Thank you