I got this idea by staring at my card and wondering how I could make the checkout procedure seem more interesting and interactive. I kept flipping the card, looking at it for inspiration and the whole concept of flipping the card on the screen came into my mind. Then, I worked on making the UI designed so you are actually writing the information on the card and creating a 3D representation of your card.
I’m very happy with this one! It could do with a bit more colour, maybe.
Real pixels: HTML, CSS, JS