Add shadow behind individual posts

Hi Jeremy, thanks for the great theme.

I see that on the home page, there is a shadow effect behind the post.

How can I get the same shadow effect behind each individual post.

Because after you click on the post on the home page, it takes you to the individual post page – and there is no shadow there.

And what file should I go to in order to edit the code???

(Also, I’m aware that the shadow effect only shows up in Mozilla Firefox and Chrome)

Thanks so much.

*My blog is at http://tarawalkerblog.com