How to change background colour of Payment page(Step 3) of event registration form

Hello friends,


I really need your expert advise on how to change background colour of a payment page for an event registration form. I managed to change it for Step 1 & Step 2 page but can't figure where the code is for the Payment page. Can you please help?


Also, do you know how to change text colour on Step: 2 - Registration details page? I need to change font colour from white to black.


Your prompt help will be greatly appreciated. I need to make our event registration form live as soon as possible.


Thank you so much.


Brinda