iTunes LP Rendered Entirely by…
You guessed it, HTML and CSS.
The iTunes LP experience is accomplished with HTML 4.01, CSS and JS. The interface feels very Flash-like, but there is no trace of it. The CSS animations are elaborate and smooth. Font files are referenced with an @font-face declaration in the CSS but there seems to be little to no use. Most text, even long passages of lyrics, is represented visually with a PNG file. I wonder if they originally intended to use font replacement for all text, but changed their mind.
I haven’t taken a look into it myself yet.