This omnibus bug will cover bugs which update two-column template grid markup from YUI to Bootstrap. Typical markup to be replaced: <div id="doc3" class="yui-t2"> <div id="bd"> <div id="yui-main"> <div class="yui-b"> <!-- Main body of the page --> </div> </div> <div class="yui-b"> <!-- Left-hand sidebar --> </div> </div> </div> Replacement: <div class="main container-fluid"> <div class="row"> <div class="col-sm-10 col-sm-push-2"> <!-- Main body of the page --> </div> <div class="col-sm-2 col-sm-pull-10"> <!-- Left-hand sidebar --> </div> </div> </div> Note that "col-sm-push-2" and "col-sm-pull-10" are the classes that reverse the visible column order in the desktop layout.