Can i add default bottom margin to all posts content area

Hi

Can i add default bottom margin to all posts content area ?
post link: http://www.reflection.org.il/?p=302
Without effecting the margin to footer on main pages
Home link: http://www.reflection.org.il/

** When i add  **
.the_content_wrapper { margin-bottom: 25px } it adds white apace between the bottom of homepage to the black footer area, I'm looking for something to effect the bottom padding of posts only.

Thank you
Eyal