A simple login/signup UI designed by Omkar Kulkarni. When you click on the card in the background, it flips over and replaces the one in the front, the card from the front fades into the back at the same time.
If you are having trouble with the pen, try the archived copy on GitHub
Login and Signup Snippet
See the Pen Card Switch by Omkar Kulkarni (@TheThinkinGeek) on CodePen.0