If you want to pay with a credit card without a PayPal account, no problem. Here's how:
On checkout, select PayPal as payment method. The secret is that you can pay PayPal with a credit card--no PayPal account is actually needed.
Then, when you are directed to PayPal, select "Pay with a debit or credit card" at the bottom of the login page:
You will then see the Guest Login screen where you can complete your payment as a PayPal guest:
[Please note that for this example, my Askari information is entered. You would replace all this with your own information.]