Hi folks,
I know some of you are having problems with browser extensions etc. But I just skipped Stylebot completely, with my silly hack (it does the job).
Here's how.
When you're running a demo, you want to hide your prompt code in the playground. To do this, before your first line of prompt instruction, just add lots of carriage returns (return key) and push the code down the window.
Now when you run the demo, your code box will appear blank, because the prompt has been pushed to the bottom of the window. See the attached picture.
Not as slick as the Stylebot method, agreed, but it does the job!