# <munder>

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

## Attributes

accentunder
If `true`, the element is an accent, which is drawn closer to the base expression.
If `false` (default value), the element is a limit under the base expression.
align
The alignment of the underscript. Possible values are: `left`, `center`, and `right`.
This attribute is deprecated and will be removed in the future. Use CSS `text-align` instead.
class, id, style
Provided for use with stylesheets.
`displaystyle`
A Boolean value specifying whether more vertical space is used for displayed equations or, if set to `false`, a more compact layout is used to display formulas. The main effect is that larger versions of operators are displayed, when `displaystyle` is set to `true`. See also `movablelimits` on `<mo>`.
href
Used to set a hyperlink to a specified URI.
mathbackground
The background color. You can use `#rgb`, `#rrggbb` and HTML color names.
mathcolor
The text color. You can use `#rgb`, `#rrggbb` and HTML color names.

## Examples

Sample rendering:

Rendering in your browser: $\underset{⏟}{x+y+z}$

``````<math>

<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>
``````

## Specifications

Specification Status Comment
MathML Core
The definition of 'munder' in that specification.
Draft Draft specification
MathML 3.0
The definition of 'munder' in that specification.
Recommendation Current specification
MathML 2.0
The definition of 'munder' in that specification.
Recommendation Initial specification

## Browser compatibility

BCD tables only load in the browser

• `<mover>` (Overscript)
• `<munderover>` (Underscript-overscript pair)