How this page was made?

Can someone tell me how this page was made ?
I want to use the shadowed square shape for my web site, and if somebody have an idea i would be happy.
Thanks for your help

Hi Michel

It seems that is custom made. The page is just a node and all the content is in the body but the user added some classes and then styled the elements using the override theme.

OK, that means is not easy to reproduce it with a template.
Thanks for the answer.