Help:RichText editor - Subscript and superscript
Subscript and superscript formatting is often used in mathematical expressions or footnote references. CKEditor makes it easy to format the text as subscript or superscript with appropriate toolbar buttons.
Subscript
Subscript is a character that is slightly smaller than the text that surrounds it and is set below the baseline. It is often used in mathematical expressions to denote a variable version or the denominator part of a fraction.
To use subscript in your document, press the 
Subscript toolbar button. To remove the formatting, press the button again.
Superscript
Subscript is a character that is slightly smaller than the text that surrounds it and is set above the baseline. It is often used in mathematical expressions to denote power or the numerator part of a fraction. In normal text superscript often directs a user to a footnote. Note that some special characters are often added as superscript by default.
To use superscript in your document, press the 
Superscript toolbar button. To remove the formatting, press the button again.
See also
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