I came to the demo site today to look into charting objects and in Chrome the styling of the demos seems pretty messed up. I have just made sure I have the latest Chrome (Ubuntu) Version 43.0.2357.130 (64-bit). See the attached images. It's fine in Firefox.
The main client area is empty and the content is forced down below. Scrolling the content rolls it up behind the nav bar and main client area.