I'm trying to recreate this design using Tailwind, but I'm finding it hard to add the drop shadow and colors. I'm probably being an idiot here, but any help would be greatly appreciated!

This is the playground I'm working in:
https://play.tailwindcss.com/gNadhDPsbj

That is the code taken from here:
https://play.tailwindcss.com/gNadhDPsbj