Set header h1,h2 margin to 0, add 15px padding to main header
_typography partial
	- center align all text
	- set nav links font size
Style mobile nav links
	- globals partial
	-- Add vertical padding
	-- Set accentColor as background on hover
	- layout partial
	-- Remove horizontal header padding
	- typography partial
	-- Set color to white on li hover
header.php: Move a tags to enclose li tags