<sub> and <sup>
Widely available since 2018-01-29
The <sub> and <sup> elements sets inline text to be displayed as subscript or superscript for solely typographical reasons.
Learning resources on MDN
Browser support
- Chrome 1 Released on 2008-12-11
- Chrome Android 18 Released on 2012-06-27
- Edge 12 Released on 2015-07-29
- Firefox 1 Released on 2004-11-09
- Firefox for Android 4 Released on 2011-03-29
- Safari ≤4 Released before 2009-06-08
- Safari on iOS ≤3.2 Released before 2010-04-03
Specifications
- HTML Standard (#the-sub-element), from HTML Workstream (WHATWG).
- HTML Standard (#the-sup-element), from HTML Workstream (WHATWG).