Grow sales with Customer Journey Smarts
(Only MVP Supporters can download original high-quality recordings for offline viewing.)
The same basic idea as the cards on the homepage of v17 of this site.
See the Pen
Moving Cards by Chris Coyier (@chriscoyier)
Frontend Masters has a full CSS learning path with multiple courses depending on how you want to approach it. There is an in-depth course covering all of CSS, a Sass-specific course, a course on modern layouts, and a course on SMACSS, a approach to CSS architecture.