I posted this in the Ubercart Stripe issue queue as well.  Link -> https://github.com/backdrop-contrib/uc_stripe/issues/8


Hi, I setup an Ubercart store using Ubercart Stripe module. When on the checkout screen, the section where you input your credit card/exp/cvc is on a tiny little line. How to get it into it's own fieldset and look nice like the other form elements on the page? Please see the screenshot below. Thanks.



If I remember correctly, this widget is embedded by javascript, and is obtained from Stripe itself with an ajax call. You may need to check the Stripe API to see if it's customizable. Otherwise, inspect the css and tinker with that in your theme's css file.