How to use subscript in the CMS text editor?

Is there a way to use subscript in CMS text editor? For example I want 2.5 in PM2.5 to be a subscript.

Not at the moment unfortunately, but for now you could try a clunky workaround of creating a span out of it and then applying a custom CSS class to the span…

thank you @yang will try it out :slightly_smiling_face: