<msup>

Baseline Widely available

This feature is well established and works across many devices and browser versions. It’s been available across browsers since ⁨January 2023⁩.

The <msup> MathML element is used to attach a superscript to an expression.

It uses the following syntax: <msup> base superscript </msup>.

Attributes

This element's attributes include the global MathML attributes as well as the following deprecated attribute:

superscriptshift Deprecated Non-standard: A <length-percentage> indicating the minimum amount to shift the baseline of the superscript up.

Note: For the superscriptshift attribute, some browsers may also accept legacy MathML lengths.

html

<math display="block">
  <msup>
    <mi>X</mi>
    <mn>2</mn>
  </msup>
</math>

Implicit ARIA role	None

Specification
MathML Core # subscripts-and-superscripts-msub-msup-msubsup

This page was last modified on ⁨Mar 13, 2025⁩ by MDN contributors.