[FredZarguna]

I think that stands for superimposed.

Superscript. Makes it easy to remember you can do the same thing_{below the line} with <sub> [for subscript.]

[TigersEye]

Thanks, that’s it. I couldn’t remember that so I did a search on ‘TigersEye Dan Rather’ and found one of my older posts so I could look at the source code.