How to create a list with details  in modal/as popup? 

Hello together!

I would like to implement a list with a detail view in modal/pop-up.
I searched but only found this as example: https://bootsnipp.com/snippets/featured/product-list-with-details-in-modal-pop-up
I tried it but it didnt work :-( (i have no idea where to put in the JS-code) 
Maybe someone has already a solution for this problem? 
Thank you guys a lot!