Woocommerce Snippet Font and Color

Hello!

I added a snippet to be able to add a note to my store at the checkout, which worked really well. I would like now to make this note bigger and in bold and if possible in a different font color... Any ideas how this could be done? (I am a newbie on snippets, so quite scared to mess it up!)

Below is the snippet, it might be helpful for others as well :-)
Have a great day!
Catalina.

add_action( 'woocommerce_before_checkout_form', 'mystore_notice_forpayments' );

function mystore_notice_forpayments() {
echo '<p class="allow">If you experience problems with your payment, contact us at cv-coaching.net</p>';
}