Over the course of the workshop, I have used sample pages to illustrate different CSS topics. My practice has been to upload the samples to this site when I post my meeting report. At this point, though, it is very difficult to find these samples -- you have to go back through the archived meeting notes looking for a particular topic.
To make it easy to locate a sample, I have added to the site an index to the sample pages and a permanent link to this index in the sidebar under the CSS Resources Page link. As we use more sample pages, I will post them and update the index to keep it current.
I encourage you to download a page and edit its source in order to get a real feel for how CSS works.