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.
Iffalse(default value), the element is a limit under the base expression. - align
- The alignment of the underscript. Possible values are:
left,center, andright. - 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,#rrggbband HTML color names. - mathcolor
- The text color. You can use
#rgb,#rrggbband HTML color names.
Examples
Sample rendering: 
Rendering in your browser:
<math>
<munder accentunder="true">
<mrow>
<mi> x </mi>
<mo> + </mo>
<mi> y </mi>
<mo> + </mo>
<mi> z </mi>
</mrow>
<mo> ⏟ <!--BOTTOM CURLY BRACKET--> </mo>
</munder>
</math>
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 |
See also
<mover>(Overscript)<munderover>(Underscript-overscript pair)