This is a very cool mobile friendly 3d eCommerce grid layout that can be used as a category archive. It has a triangular isometric grid layout where you display each product along with pricing and brand information, it gives you the appearance of shelves carved into the wall.
If you are having trouble with the pen, try the archived copy on GitHub
eCommerce Grid Snippet
See the Pen Isometric eCommerce CSS Grid by Andy Barefoot (@andybarefoot) on CodePen.default