HTML | Subscript and Superscript Tags
Subscript: The <sub> tag is used to add a subscript text to the HTML document. The <sub> tag defines the subscript text. Subscript text appears half a character below the normal line and is sometimes rendered in a smaller font. Subscript text can be used for chemical formulas, like H2O to be written as H2O.
Superscript: The <sup> tag is used to add a superscript text to the HTML document. The <sup> tag defines the superscript text. Superscript text appears half a character above the normal line and is sometimes rendered in a smaller font. Superscript text can be used for footnotes.
Examples:
- Super and Sub script in HTML code:
html
<!DOCTYPE html> <html> <body> <p>Testing <sub>subscript text</sub></p> <p>Testing <sup>superscript text</sup></p> </body> </html> |
- Output:
- Set style of subscript with CSS:
html
<!DOCTYPE html> <html> <head> <style> sub { vertical-align: sub; font-size: small; } </style> </head> <body> <p>A sub element is displayed like this</p> <p>This text contains <sub>subscript text</sub></p> <p>Change the default CSS settings to see the effect.</p> </body> </html> |
- Output:
- Another example with CSS:
html
<!DOCTYPE html> <html> <head> <style> sub { vertical-align: sub; font-size: medium; } </style> </head> <body> <p>Examples to demonstrate subscript text</p> <p> Chemical formula of water is H<sub>2</sub>O</p> <p>T<sub>i+2</sub>= T<sub>i</sub> + T<sub>i+1</sub></p> <p>Change the default CSS settings to see the effect.</p> </body> </html> |
- Output:
- Superscript Example With CSS:
html
<!DOCTYPE html> <html> <head> <style> sup { vertical-align: super; font-size: small; } </style> </head> <body> <p>A sup element is displayed like this:</p> <p>This text contains <sup>superscript text</sup></p> <p>Change the default CSS settings to see the effect.</p> </body> </html> |
- Output:
- Example to write mathematical equations using super and subscripts:
html
<!DOCTYPE html> <html> <head> <style> sup { vertical-align: super; font-size: medium; } </style> </head> <body> <p>Examples to demonstrate superscript text</p> <p>2 <sup>4</sup>=16</p> <p>X <sup>4</sup>+ Y<sup>6</sup></p> <p>9<sup>th</sup> of september</p> <p>Change the default CSS settings to see the effect.</p> </body> </html> |
- Output:
Supported Browser: Supported browsers are listed below.
- Google Chrome
- Internet Explorer
- Firefox
- Opera
- Safari
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