<mphantom>

Baseline Widely available

This feature is well established and works across many devices and browser versions. It’s been available across browsers since January 2023.

See full compatibility

The <mphantom> MathML element is rendered invisibly, but dimensions (such as height, width, and baseline position) are still kept.

Attributes

This element accepts the global MathML attributes.

Examples

html

<math display="block">
  <mrow>
    <mi>x</mi>
    <mo>+</mo>
    <mphantom>
      <mi>y</mi>
      <mo>+</mo>
    </mphantom>
    <mi>z</mi>
  </mrow>
</math>

Technical summary

Implicit ARIA role	None

Specifications

Specification
MathML Core # making-sub-expressions-invisible-mphantom

Browser compatibility

	desktop					mobile
	Chrome	Edge	Firefox	Opera	Safari	Chrome Android	Firefox for Android	Opera Android	Safari on iOS	Samsung Internet	WebView Android	WebView on iOS
`mphantom`	Chrome – Full support Chrome 109 (Release date: 2023-01-10) footnote Full support	Edge – Full support Edge 109 (Release date: 2023-01-12) footnote Full support	Firefox – Full support Firefox 1 (Release date: 2004-11-09) footnote Full support	Opera – Full support Opera 95 (Release date: 2023-02-01) footnote Full support	Safari – Full support Safari 6 (Release date: 2012-07-25) footnote Full support	Chrome Android – Full support Chrome Android 109 (Release date: 2023-01-10) footnote Full support	Firefox for Android – Full support Firefox for Android 4 (Release date: 2011-03-29) footnote Full support	Opera Android – Full support Opera Android 74 (Release date: 2023-03-13) footnote Full support	Safari on iOS – Full support Safari on iOS 6 (Release date: 2012-09-10) footnote Full support	Samsung Internet – Full support Samsung Internet 21 (Release date: 2023-05-19) footnote Full support	WebView Android – Full support WebView Android 109 (Release date: 2023-01-10) footnote Full support	WebView on iOS – Full support WebView on iOS 6 (Release date: 2012-09-10) footnote Full support

Tip: you can click/tap on a cell for more information.

Full support: Full support