SUP / SUB

about SUP / SUB :

• sub element defines subscript text. Subscript text appears half a character below the baseline. Subscript text can be used for chemical formulas, like H₂O.
• sup element defines superscript text. Superscript text appears half a character above the baseline. Superscript text can be used for footnotes, like WWW^[1].

---

SUP / SUB attrib :

1. class :Specifies a classname for an element
2. dir : Specifies the text direction for the content in an element
3. id : Specifies a unique id for an element
4. lang : Specifies a language code for the content in an element
5. style : Specifies an inline style for an element
6. title: Specifies extra information about an element
7. onclick : Script to be run on a mouse click
8. ondblclick : Script to be run on a mouse double-click
9. onmousedown : Script to be run when mouse button is pressed
10. onmousemove : Script to be run when mouse pointer moves
11. onmouseout : Script to be run when mouse pointer moves out of an element
12. onmouseover : Script to be run when mouse pointer moves over an element
13. onmouseup : Script to be run when mouse button is released
14. onkeydown : Script to be run when a key is pressed
15. onkeypress : Script to be run when a key is pressed and released
16. onkeyup : Script to be run when a key is released

---

SUP / SUB example :

<p>This text contains <sub>subscript</sub> text.</p> <p>This text contains <sup>superscript</sup> text.</p>

origin by : w3schools.com