[Theme: Twenty Twelve] Decrease padding between content and sidebar

Hi folks, on the following site:

http://www.sunnysidechildrensclinic.com/autism/

You’ll notice quite a wide padding of whitespace between the main text block of content and the far left border of the facebook widget in the widgets area.

I’m looking to narrow that gap, so I might widen the facebook widget and decrease the space between the content and the widget.

I’m using a child theme forked off “Twenty Twelve”

[Moderator Note: No bumping, thank you.]