index.md

---

title: <munder>
slug: Web/MathML/Element/munder
browser-compat: mathml.elements.munder

---

{{MathMLRef}}

The <munder> MathML element is used to attach an accent or a limit under an expression. It uses the following syntax: <munder> base underscript </munder>

Attributes

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

• accentunder

  • : A <boolean> indicating whether the under script should be treated as an accent (i.e. drawn bigger and closer to the base expression).

Examples

<math display="block">
  <munder accentunder="true">
    <mrow>
      <mi>x</mi>
      <mo>+</mo>
      <mi>y</mi>
      <mo>+</mo>
      <mi>z</mi>
    </mrow>
    <mo>&#x23DF;<!--BOTTOM CURLY BRACKET--></mo>
  </munder>
</math>

{{ EmbedLiveSample('munder_example', 700, 200, "", "") }}

Specifications

{{Specifications}}

Browser compatibility

{{Compat}}

See also

• {{ MathMLElement("mover") }} (Overscript)

• {{ MathMLElement("munderover") }} (Underscript-overscript pair)