am 8e44ae9c: docs: fix IE6 bug in which tabs are not focusable while in the reference. also increase the minimum width for the header to avoid line-wrapping of the tabs.

Merge commit '8e44ae9c762785d80e54bc75e2ba353f486414ec' into eclair

* commit '8e44ae9c762785d80e54bc75e2ba353f486414ec':
  docs: fix IE6 bug in which tabs are not focusable