Forum OpenACS Q&A: openacs.org wiki layout problem
After a little digging, it appears that the problem is something of a conflict between different width specifiers: the left column is 245px, the right column is 70%, and the body has max-width: 75em. The combined result is that if 23ems is smaller than 245px (which I figure will happen around 10pt) the content div gets floated beneath the navigation, making things rather ugly.
You can see this behavior pretty easily in a gecko browser by making the font smaller 2 or 3 times (Ctrl=-). Or if you're unlucky like me, that's the default.
If the styles are set with a width in pixels that's also a percentage, then could the body width be set in pixels also? (e.g., change body "max-width: 75em" to "max-width: 818px")