The MathML <mphantom> element is rendered invisibly, but dimensions (such as height, width, and baseline position) are still kept.
Attributes
- class, id, style
- Provided for use with stylesheets.
- mathbackground
- The background color. You can use
#rgb,#rrggbband HTML color names.
Examples
Sample rendering: 
Rendering in your browser:
<math>
<mrow>
<mi> x </mi>
<mo> + </mo>
<mphantom>
<mi> y </mi>
<mo> + </mo>
</mphantom>
<mi> z </mi>
</mrow>
</math>
Specifications
| Specification | Status | Comment |
|---|---|---|
| MathML 3.0 The definition of 'mphantom' in that specification. |
Recommendation | Current specification |
| MathML 2.0 The definition of 'mphantom' in that specification. |
Recommendation | Initial specification |
Browser compatibility
| Feature | Chrome | Firefox (Gecko) | Internet Explorer | Opera | Safari |
|---|---|---|---|---|---|
| Basic support | No support | 1.0 (1.7 or earlier) | No support | No support | 5.1 |
mathbackground |
No support | 4.0 (2.0) | No support | No support | 5.1 |
| Feature | Android | Chrome for Android | Firefox Mobile (Gecko) | IE Mobile | Opera Mobile | Safari Mobile |
|---|---|---|---|---|---|---|
| Basic support | No support | No support | 1.0 (1.0) | No support | No support | No support |
mathbackground |
No support | No support | 4.0 (2.0) | No support | No support | No support |