registration/login form codepen code example

Example: login and register form codepen

Some of the codes that can help :
1. https://codepen.io/ehermanson/pen/KwKWEv
2. https://codepen.io/trangsihung/pen/zbwGx
3. https://codepen.io/Mhmdhasan/pen/JbJzZv
4. https://codepen.io/suez/pen/RpNXOR