Blank weblab location

Is there a location outside the curriculum that students can go to use weblab. I am at Lesson 4 Step 4 where they create a first mini web page. I would like to offer some opportunities before this project for them to practice using the weblab and the coding involved to prep them for the assignment. I feel they just need more practice than the curriculum provides.

@tneuber, It still says it’s in beta, but I have used it and it seems to work just fine, but here’s the link:

Hope that helps!