This is very helpful! Thank you for this -- it did what I wanted it to, and I took out all my non-edited CSS.
I do have 2 quick follow-up questions though, if you have a chance to help.
In the Twenty Eleven theme, the font of the footer widgets makes everything bold and I would like make it not bold, and even increase the size of the font a bit, but I can't see where in the CSS that would apply. Would it even be possible to edit that? The same with the Showcase Sidepanel -- font is bold and large, and changing my font in Fonts doesn't decrease relative size.
One other thing -- I have a featured post on my homepage and I think it looks good in general, but now that I've expanded my width, it has only 2 lines of text and TONS of white space....how can I include more text before the "continue reading"
Sorry if these are too technical, but I just can't get a handle on the CSS enough to make these edits myself.