Hi David
yes absolutely – always have cache turned off in dev tools but have double-checked anyway and it made no difference.
I have tried this in my own Chrome as well as Firefox and am getting the same issue. I *think* it’s happening on any ‘container’ div, as when I remove the class tag in console the issue goes away (along with the formatting obviously).
Interestingly, I tried it in the new Windows Edge browser and there’s no issue there.