Variables
Const CONTENT_MODE
CONTENT_MODE: "content" = "content"
Const MENU
MENU: "ww-menu" = "ww-menu"
Const MENU_DIVIDER
MENU_DIVIDER: "ww-menu__divider" = "ww-menu__divider"
Const MENU_HEADER
MENU_HEADER: "ww-menu__header" = "ww-menu__header"
Const NAV_MODE
NAV_MODE: "nav" = "nav"