Fix the overlapping main menu and the main content block on all the pages.
Fix the overlapping main menu and the main content block on all the pages.

--HG--
extra : rebase_source : 064634883c59f70c9bfa4c6c1c223b7b11b466c6

rhyolight/nupic.son,rhyolight/nupic.son,rhyolight/nupic.son