The basic IPB3 skin/CSS

Hey all:

I'm new here, and have a question...
I am running a forum that, while is not IPB hosted, uses a IPB2.1 skin -- which (of course) looks a bit flat compared to the IPB3 skin. I would really like my forum to look like this: http://community.invisionpower.com/

Same colors. Same font. Same menu style. Same post design. Etc., etc.

I have been told that much of this can be achieved through CSS. My question is, does anyone have the CSS code for that basic IPB3 skin. I'm not a CSS guru, so trying to tweak my forums CSS to look like an IPB3 skin has been a daunting, and largely failed, effort.

If you can offer any help, I would appreciate it very much.

Thanks.