"white-space: nowrap;" for radio buttons and labels

to make the button and text label stay on 1 line?

See https://contactform7.com/custom-layout-for-checkboxes-and-radio-buttons/??
?
See Styling Contact Form 7 Forms for a general explanation of styling CF7 forms using CSS.

If you find you need more detailed advice, after reading and working through the above link, please include a link to your Contact Form 7 form, so others here can examine your form in detail using Firebug or Chrome Dev Tools to understand the CSS used for your CF7 form elements and provide you with a possible solution.