I'm not sure what the second table in core/table/table.html is supposed to be demonstrating but being stuck in a size1of5 it is very narrow and looks terrible, at least in Chrome and Firefox on OS X.
That is a test case. I was looking at how the tables behave when they are too small. We should move this into table_tests.html
Ah. I just committed a change to do that to gigamonkeys/oocss which apparently got automatically added to my outstanding pull request. (Guess I need to grok how pull requests work a bit better; I had expected to need to make a new pull request for the new change.)