<msub>

The <msub> MathML element is used to attach a subscript to an expression.

It uses the following syntax: <msub> base subscript </msub>.

Attributes

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

subscriptshift: A <length-percentage> indicating the minimum amount to shift the baseline of the subscript down.

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

Examples

html

<math display="block">
  <msub>
    <mi>X</mi>
    <mn>1</mn>
  </msub>
</math>

Technical summary

Implicit ARIA role	None

Specifications

MathML Core

See also

<msup> (Superscript)
<msubsup> (Subscript-superscript pair)
<mmultiscripts> (Prescripts and tensor indices)