Elemental Collapse Points

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OK, so I have been toying around for a couple hours now trying to make my sidebar collapse @ larger width than it does now. I have a couple items in there from Angie's list and Facebook that go outside the sidebar when the screen gets below @ 900px. My google map I can deal with but these two just won't cooperate. If you go to this page:http://www.collisionct.com/index.php/services...
you will notice that if you resize the browser the sidebar headings get cut shorter than the content. I really just want it to break @ 900 and for the sidebar to clear and go under the main content, or make it so the sidebar does not have the offset of 1 so that the content fits and the headers do not shrink. Any solution or advice is greatly appreciated.

I guess, ideally, I want to set the min-width for the sidebar to be 262.5px. I tried to set it and it didn't take.
Thanks.

sully210