How do I make thumbnail images from my CodePen projects for my portfolio?

How do I make thumbnail images from my CodePen projects for my portfolio?
0

#1

As seen on the example from the Build a Personal Portfolio Webpage:

I would like to create images that are links to the projects I have done so far. However I have no idea how to get the initial image of my CodePen projects.

Help on how to do this would be much appreciated.

My CodePen profile below:
https://codepen.io/EbLuhar/


#2

Just take a screenshot.