A code playground for this would be nice.

I download every file I can get my grubby hands on, mostly because I used to study at Codecademy, and zipping through the lessons didn't help retain any of the information.

I used the attendant starter project files and created a pen so people could modify along with the video. Hope this helps!

http://codepen.io/RavingNoah/pen/yyYJbx

Please note: I don't know if there is Markdown syntax for opening a link into a blank tab/page, so you'll have to right-click your way into one.

There is Workspaces, which allows you to try out CSS (and Sass). It does lack the ability to share your creations.

What exactly are you describing?

I don't necessarily want to speak for Nigel, but I would guess he's talking about the lack of a direct link to the videos project files on CodePen; which a fare number of the videos in the "CSS foundations" have (I'm guessing this particular series was done before Workspaces was a thing?).

Nigel: The project files are available to download from the download section under each video if you had not realised (although it is a pain to download these for each video so having a direct link to them on CodePen or Workspaces, like you said, would be very useful).