Is it possible to add custom CSS inside the product descripton field?

Hello, I want to add this code INTO the product description field of a product, is it possible somehow?

.square { width: 20px; height: 20px; background-color: #808080; border: 1px solid #000; } 

Hey @loylabel, what is it you are targeting with the class ‘.square’?

Hello there, I wanna do something like the image below... insted of writting down the color name in my products.