Mobile Case Study View

Case study mobile view. The only changes needed from the large screen view is the hamburger dropdown menu and making the 2 column layout into 1 column.

@Mathew Sanders - I want the project title to carry a lot of visual weight. I couldn't get the left and right chevrons in here without minimising that weight. Didn't think about dropping it just for mobile might will give that a think. At the bottom may not be the best either, but I'm happy with it there.