Added .section class to all 4 sections. Added
 #links to header links span. Made new area in
 styles.css for aranging items.

Apply the Roboto font to all elements with serif
as a fallback font.

Add call to action box, with big and small text,
and a button in it.

Add Quote section text as a p and an h3.

Add text for Info section, along with empty
placeholder images.

Add Header Logo, links as spans, with appropriate
ids. Add Hero title, subtext, and sign up button.

Add 4 divs called top, info, quote, bottom
Add footer