improve radio button styling

src/__snapshots__/footer.test.jsx.snap

@@ -207,7 +207,7 @@ exports[`Footer exists 1`] = `
           items={
             Array [
               <span>
-                © 2023 Meetup LLC
+                © 2024 Meetup LLC
               </span>,
             ]
           }

src/forms/RadioButton.jsx

@@ -16,11 +16,12 @@ export class RadioButton extends React.PureComponent {
 			value,
 			children,
 			name,
+			labelClassName,
 			...other
 		} = this.props;
 
 		return (
-			<label className="radio-container">
+			<label className={cx('radio-container', labelClassName)}>
 				<span
 					className={cx('radio', { checked, disabled })}
 					tabIndex={0}
@@ -51,6 +52,9 @@ RadioButton.propTypes = {
 	/** What we render into the input's `<label />` */
 	label: PropTypes.string.isRequired,
 
+	/** Class name for label wrapper */
+	labelClassName: PropTypes.string,
+
 	/** Additional class name/s to add to the wrapper element  */
 	className: PropTypes.string,
 	/**