I ran into a flexbox bug (which turns out to be by design): http://code.google.com/p/chromium/issues/detail?id=152386 http://code.google.com/p/chromium/issues/

I ran into a flexbox bug (which turns out to be by design): http://code.google.com/p/chromium/issues/detail?id=152386 http://code.google.com/p/chromium/issues/detail?id=152386 `display: -webkit-flex` disables `overflow: hidden` Flexbox in general is still experimental; only Chrome 21+ supports the new spec.