Move content div into layout

Signed-off-by: John Else <john.else@citrix.com>
Tweak CSS

Signed-off-by: John Else <john.else@citrix.com>
Ditch the largebanner

Signed-off-by: John Else <john.else@citrix.com>
class -> id

Signed-off-by: John Else <john.else@citrix.com>
Rename smallbanner -> header

Signed-off-by: John Else <john.else@citrix.com>
Add CSS for sticky header and footer

Signed-off-by: John Else <john.else@citrix.com>