Prac 4 - Fixed H2 for features

Set up the features area, and moved the headings so they were inside of
the features box (to get the purple colour).
Prac 4 - Product Formatting

Formatting added for the product box.
Prac 4 - Added Footer

Footer styling has been added.
Prac 4 - up to end of 2.5

Playing with some floats.
Prac 4 - Full CSS up to end of Section 2
Finished Prac 4