This is an interactive 3D button as you move your mouse over the button you will see that the button will interact with it.It’s great to use as a call to action element on any website.This is designed by Tobias Reich.
If you are having trouble with the pen, try the archived copy on GitHub
See the Pen Parallax 3D Button with JS controlled CSS variables by Tobias Reich (@electerious) on CodePen.0