🏠 New in High Baseline Support: <sub> and <sup>
January 29, 2018
caniuse · mdn · [spec]([‘https://html.spec.whatwg.org/multipage/text-level-semantics.html#the-sub-element’, ‘https://html.spec.whatwg.org/multipage/text-level-semantics.html#the-sup-element’])
The <sub> and <sup> elements sets inline text to be displayed as subscript or superscript for solely typographical reasons.