Styling additional info for BLIK payment method

Hi!

I am using your plugin for the payment method used in Poland. It is BLIK (stripe_blik).

Using the below snippet I styled a label for BLIK payment without any problem.

add_filter('wc_stripe_get_element_options', function($options, $gateway){
	 if( $gateway->id === 'stripe_blik'){
		  $options['appearance']['rules'] = [			
      '.Label' => [
				    'fontWeight' => '700',
        'marginBottom' => '12px'
			   ]
		  ];
  }
  return $options;
}, 10, 2);

I do not have any idea how to style (change font-weight) the additional description (“Po złożeniu zamówienia autoryzuj płatność w aplikacji bankowości mobilnej”). In Dev Tools it is:

regards,
Grzegorz