Wrong index.html file on Workspace

Hi

I'm doing the Modular CSS with Sass course, and there's a bug in the workspace associated with the "Using the Media Query Mixin" video: the index.html file in that workspace doesn't have any of the grid classes that are essential to build the layout.

It took me a while to figure out what wrong with the layout ─ I reviewed the instructions two times, trying to find bugs in the Sass code, and even went back a few lessons in my efforts to track the problem to its roots, until I realized what it was: all the grid-related classes had simply vanished from the html file.

It's not the first time I experience this kind of Workspaces-related problems. Previously I just wrote the missing code and took the opportunity to further familiarize myself with it, but now I decided to give you guys a heads-up on this, because it really is annoying to spend half an hour trying to figure out what you did wrong just to end up finding that the problem was where it shouldn't be.

Of course you can always call it a lesson in resilience and debugging, but it would be best if we could rely on the project's dependencies from one lesson to the next, right?

Regards