twitter/bootstrap — pull request #2129 by andriijas (2012-02-21 09:29:37+00:00)
Title: Width fix on .tab-content

Because .tab-content has display: table; (I dont know why it has it but there is a comment about tab content running away - I think this was applicable before the .tabbable container was introduced but Im not sure) the .tab-content area sometimes doesn't get the equal width as the nav-tabs ul - specially when you do full container width tab navigation.