A simple website where payment gateway is integrated, here simple donate button on homepage is placed on clicking the donate button, the user will land on the payment page where user can select the amount to be paid and the payment type. e.g. credit card, Paypal, etc.
Once the payment is done and invoice will be generated and email will be sent to the user for the payment received. The invoice will contain the amount that was donated.
1)HTML
2)CSS