I went through this tutorial and I had a few strange behaviors:
1) The text font size for the title is displaying incorrectly despite being exactly what you showed (my guess is the reference for my browser (Firefox) is different. It wrapped to a second line.
2) The code to get the figures to move to the right worked for the second figure but not the first. The text wrapped properly for the second figure but not the first.
3) and finally the third issue I had was that the navigation section worked properly only for the header and not the footer. For some reason the margin command did not work... I checked it and it is a copy of the first command. (That is how I put it there to begin with).
Other than those few stylistic issues everything worked properly. (Oddly enough IE did not work very well for me)