In trying to tweak the category archive page look a bit (include under the banner the category name and description), I yet again ran into the issue of not being able to apply a left margin (or padding) to the description <div> block (neither percent nor absolute pixel values worked). I had previously seen this when tweaking the sidebar and worked around it there by using a <span>. I thought that it might have something to do with float: left being used, but that's not in effect in the archive page. I really should get to the bottom of this and learn the CSS box model properly (since the same thing happens in both Safari and Firebird, I don't think it's a bug).