Realtime Interaction Credit Card

Special Thanks to ThuTrang5631(gitHub) for Collaborating Trang added cvc code, regular expression and complete form execution

This took me more than 1 week to Solve! The most valuable thing I learnt from this challenge is Regular Expression, which is way more useful than just using validity.valid. Overall, I also had many problems with responsiveness, especially the font-size as I needed them to scale down along with the design. Feel free to try out the features of this challenge!!