Responsive Design and OO Javascript Observer Design Pattern Interesting and difficult test for hardcore front end role at Causata. I missed the deadline because I was working at CNN but it was such a challenging test that I couldn't resist (almost) completeing it! Full spec is in the pdf, CausataUI-test.pdf [Part 1] (https://googledrive.com/host/0B-T-DKgvB5MhZThtWnVqTWNiOFE/index-1.html) [Part 2] (https://googledrive.com/host/0B-T-DKgvB5MhZThtWnVqTWNiOFE/index-2.html)