in html, that’s what the editor uses as far as i know… i just hit ctrl-/ and it comments using the appropriate syntax for the file i’m working in, be it html or css (which are different).
VSCode and Atom both take care of all that on their end and if needs augmenting there’s probably a plug in for it. I also found Atom to be bulkier and slower than VSCode and it really did come down to how each handled the little color preview box whenever i use a #fcf color designation… atom was too slow and clunky where VSCode just handled it and didn’t make a fuss about it.
I’m shallow that way.