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 indicating the minimum amount to shift the baseline of the subscript down.

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

Examples

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

Technical summary

Specifications

Browser compatibility

See also

• (Superscript)

• (Subscript-superscript pair)

• (Prescripts and tensor indices)