TheTao (11) [Avatar] Offline
#1
Page 16 in the code at the bottom of the page. I think you meant

<section class="main">

instead of main, you have content. Either that's wrong or the snippet on the next page is wrong.
Abu Yahya (1) [Avatar] Offline
#2
Re: Chapter 1 errata
Another one I found is typo:

"to serve the smaller size rules to a browser widow thatÂ’s been slimmed down"