CC wouldn't go over the limit, but would Paypal pull the extra amount from my CC if I don't have enough to buy from an online store? like they do when you send money to someone and are short a buck or two?
EDIT: Say item is $15, I only have $10 in Paypal using my MC debit from Paypal. Would Paypal then charge my CC $5 to cover the difference? Or would I not be able to use my Paypal debit card?