This page lists errata from the book (hopefully not too much!), changes to the specifications since publication, and brand new features.
The CSS 2D Transforms and 3D Transforms modules have been merged into a single module: CSS Transforms. The only practical change this has resulted in so far is the removal of the
skew() function —
skewY() remain unchanged.
-moz-skew() function has been removed from Firefox 14, and Example 12–05 has been updated to show this.
— 25 June, 2012