[Pro Sites] PayPal Express to allow credit card?

I am implementing Pro Sites plugin and for now plan to use the Express Checkout option. How do I make it so the end-customer can pay using a credit card?

My PayPal account is Website Payments Standard and I believe that account should let me provide that to end-customers. However, testing the checkout page seems to show only paying if they have a PayPal account… am I missing something?