CSS Preprocessors like SASS and LESS are super cool because they add a ton of functionality, but manually compiling is painful. Prepros automates it all.
One of the things that I really liked about The Modern Web was the way Peter Gasston was able to take his obvious passion and depth of knowledge for the subject matter and explain it so clearly. That stays true in The Book of CSS3, in which Gasston carefully explains tons of the new features…
Want to set up a table of contents within a webpage? You can accomplish that simply by using named anchors and assigning IDs to elements on the page.