How do I customize the size of home page widgets?

[jkossen]

http://www.musicaudits.com

If you look at the home page widgets, the height of the sidebar widget is smaller than the Homepage Middle widget. How do I define the size of them, so they are both the same?

Thanks,

Jeremy

P.S. You know would be helpful is if under tutorials for each theme, there was a reference list on easy, but slightly more advanced customization than simply configuring home page or removing categories, etc. Stuff like changing the font size of the text on the homepage, changing the font on the widget headers, permanently removing homepage left and right widgets, etc.

These are all obviously pretty easy to do, but it would save some time for those of us who don't use CSS and PHP a lot.