# <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`.
class, id, style
Provided for use with stylesheets.
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: $\underset{⏟}{x+y+z}$

```[itex]

<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>

[/itex]
```

## Specifications

Specification Status Comment
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

Feature Chrome Firefox (Gecko) Internet Explorer Opera Safari
Basic support Not supported 1.0 (1.7 or earlier) Not supported Not supported 5.1
`accentunder` Not supported 1.0 (1.7 or earlier) Not supported Not supported Not supported
`align` Not supported 12.0 (12.0) Not supported Not supported Not supported
`href` Not supported 7.0 (7.0) Not supported Not supported Not supported
`mathbackground` Not supported 4.0 (2.0) Not supported Not supported 5.1
`mathcolor` Not supported 4.0 (2.0) Not supported Not supported 5.1
Feature Android Chrome for Android Firefox Mobile (Gecko) IE Mobile Opera Mobile Safari Mobile
Basic support Not supported Not supported 1.0 (1.0) Not supported Not supported Not supported
`accentunder` Not supported Not supported 1.0 (1.0) Not supported Not supported Not supported
`align` Not supported Not supported 12.0 (12.0) Not supported Not supported Not supported
`href` Not supported Not supported 7.0 (7.0) Not supported Not supported Not supported
`mathbackground` Not supported Not supported 4.0 (2.0) Not supported Not supported Not supported
`mathcolor` Not supported Not supported 4.0 (2.0) Not supported Not supported Not supported

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