No problem! I had a big hand the design of this current version of Thimble, and if you're willing to share, I'd love to hear about your experiences using it to Teach. Shoot me a message on Twitter @flukeout or you can email me at [email protected] if you're interested. Cheers.
Type in "plate" for level 1 - that's the correct selector. The goal is to type the correct CSS selector for each level into the strobing blue input. Also, use chrome or firefox :D
I agree, I think I'll add a way to expose the solution. The problem with A,B is that it's also looking for one specific order, so I'll make sure both A,B and B,A work! Cheers!