GLOBAL_HEAD — Any arbitrary HTML you want placed in the <HEAD> of the page being displayed. This is a good place to put CSS or META tags. Being global, this will be placed in any view type. If you want to add tags for one certain view type, use LASTN_HEAD, DAY_HEAD, FRIENDS_HEAD, or CALENDAR_HEAD.
Only; Only users of this style may override this, it cannot be defined in a style.