start testing color pallette

begin going back-and-forth on colourlovers.com, looking at their various color sites on the site. Sass variables broken up at the too of _base.scss
change "$bg-color Sass variable name in _base.scss to $background-color
update .wrapperHeaderNav CSS class

through this update, the background color is universal via the _globalStyles.scss file. _desktopStyles.scss contains styles unique to the desktop media query.