Adding styling and formatting to a credit card form is a great way to improve your conversion rate. One of the best tools for improving your payment form is jQuery.payment, which provides formatting, validation, and css markup for your credit card fields.
The first step is including the library, here’s a link to a CDN. You can then add payment formatting to your form:
This will format the credit card input and cvc fields. It will also add a credit card class to your input once a card number is entered. You can use this class to style your form based on the type of card.
An example would be adding a background-image to your input based on the type of card. Here’s an example of the css you could use to add card provider images.