The new notification system alerted me to your comment mention of my post. The code is html:

<sup>superscript</sup>normal<sub>subscript</sub>

Which gives you:

^superscriptnormal_subscript

You can us it for ordinal numbers and exponents:

55^th and E = Mc²

and chemicals:

C₃H₈ (propane)

and if you use it in a paragraph, either, you get this:

_{This is a message written only in subscript styleThis is a message written only in subscript style This is a message written only in subscript style}

^{this is a messae written only in superscript stylethis is a messae written only in superscript stylethis is a messae written only in superscript style}