This button has a 3D effect to it and when you hover over it, you get the effect of pushing the button down. This will look great on any landing page where you really want to divert the user’s attention to the button. This button was designed by Thomas Vaeth
If you are having trouble with the pen, try the archived copy on GitHub
See the Pen LinkedIn Button by Thomas Vaeth (@thomasvaeth) on CodePen.0