Everything you wanted to know about layouts: global layouts, controller layouts, shared layouts, dynamic layouts and action layouts. Yes, there really are that many ways to specify a layout.
Compass improves the Sass experience by providing useful mixins, functions, and more. You will also learn how to make CSS sprites with it in this episode.
(9 minutes)
If you are tired of the browser vendor prefixes in CSS, check out Bourbon. It provides Sass mixins and functions to make CSS more convenient.
(7 minutes)
This episode continues on the Twitter Bootstrap project showing how to display flash messages, add form validations with SimpleForm, customize layout with variables, and switch to using Sass.
(12 minutes)
Generators in Rails 3 have been rewritten to use Thor which means the code used to create a generator is quite different. Here you will learn the new way to make generators in Rails 3.
(10 minutes)