In the HTML5 & CSS3 book, for the test site the section on the right column that says "HTML5 and CSS3 Now in Book Form" with the Bicycle moving off and then "Where in the World Are You?" and the button that says "Tell Us!" do not show up in Firefox and I can't figure out why. I see it in IE8, Chrome, and Opera but not in Firefox. I have Firefox 6.0. Anyone know why it's not there?