changed max-width of css3 switch for better looking in new ipad (or
later). When max-width is 700px, the navigtion area is in the left side
of screen and very narrow. Changing max-width to 830px , as i tried,
which is best suitable, could make navigation area in the upper of the
screen in new ipad (or later).
Merge pull request #60 from LanderlYoung/for_ipad

changed max-width of css3 switch for better looking in new ipad (or later).