MathMLElement

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.

* Some parts of this feature may have varying levels of support.

The MathMLElement interface represents any MathML element.

EventTarget Node Element MathMLElement

Instance properties

Also inherits properties from its parent, Element.

MathMLElement.attributeStyleMap Read only

A StylePropertyMap representing the declarations of the element's style attribute.

MathMLElement.autofocus

Whether the control should be focused when the page loads, or when a <dialog> or popover become shown.

MathMLElement.dataset Read only

A DOMStringMap object which provides a list of key/value pairs of named data attributes which correspond to custom data attributes attached to the element. These correspond to MathML's data-* global attributes.

MathMLElement.style

A CSSStyleDeclaration representing the declarations of the element's style attribute.

MathMLElement.tabIndex

The position of the element in the tabbing order.

Instance methods

This interface also inherits methods from its parent, Element.

MathMLElement.blur()

Removes keyboard focus from the currently focused element.

MathMLElement.focus()

Makes the element the current keyboard focus.

Examples

MathML

html
<math>
  <msqrt>
    <mi>x</mi>
  </msqrt>
</math>

JavaScript

js
document.querySelector("msqrt").constructor.name; // MathMLElement

Specifications

Specification
MathML Core
# dom-mathmlelement

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
MathMLElement
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 71 (Release date: 2019-12-10)
footnote Full support
Opera – Full support
Opera 95 (Release date: 2023-02-01)
footnote Full support
Safari – Full support
Safari 13.1 (Release date: 2020-03-24)
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 79 (Release date: 2020-07-28)
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 13.4 (Release date: 2020-03-24)
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 13.4 (Release date: 2020-03-24)
footnote Full support
attributeStyleMap
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 – No support
Firefox
footnote
footnote See bug 1278697
Opera – Full support
Opera 95 (Release date: 2023-02-01)
footnote Full support
Safari – Full support
Safari 16.4 (Release date: 2023-03-27)
footnote Full support
Chrome Android – Full support
Chrome Android 109 (Release date: 2023-01-10)
footnote Full support
Firefox for Android – No support
Firefox for Android
footnote
footnote See bug 1278697
Opera Android – Full support
Opera Android 74 (Release date: 2023-03-13)
footnote Full support
Safari on iOS – Full support
Safari on iOS 16.4 (Release date: 2023-03-27)
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 16.4 (Release date: 2023-03-27)
footnote Full support
autofocus
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 110 (Release date: 2023-02-14)
footnote Full support
Opera – Full support
Opera 95 (Release date: 2023-02-01)
footnote Full support
Safari – Full support
Safari 15.4 (Release date: 2022-03-14)
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 110 (Release date: 2023-02-14)
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 15.4 (Release date: 2022-03-14)
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 15.4 (Release date: 2022-03-14)
footnote Full support
blur
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 71 (Release date: 2019-12-10)
footnote Full support
Opera – Full support
Opera 95 (Release date: 2023-02-01)
footnote Full support
Safari – Full support
Safari 13.1 (Release date: 2020-03-24)
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 79 (Release date: 2020-07-28)
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 13.4 (Release date: 2020-03-24)
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 13.4 (Release date: 2020-03-24)
footnote Full support
dataset
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 71 (Release date: 2019-12-10)
footnote Full support
Opera – Full support
Opera 95 (Release date: 2023-02-01)
footnote Full support
Safari – Full support
Safari 13.1 (Release date: 2020-03-24)
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 79 (Release date: 2020-07-28)
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 13.4 (Release date: 2020-03-24)
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 13.4 (Release date: 2020-03-24)
footnote Full support
focus
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 71 (Release date: 2019-12-10)
footnote Full support
Opera – Full support
Opera 95 (Release date: 2023-02-01)
footnote Full support
Safari – Full support
Safari 13.1 (Release date: 2020-03-24)
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 79 (Release date: 2020-07-28)
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 13.4 (Release date: 2020-03-24)
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 13.4 (Release date: 2020-03-24)
footnote Full support
nonce
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 – No support
Firefox
footnote No support
Opera – Full support
Opera 95 (Release date: 2023-02-01)
footnote Full support
Safari – Full support
Safari 15.4 (Release date: 2022-03-14)
footnote Full support
Chrome Android – Full support
Chrome Android 109 (Release date: 2023-01-10)
footnote Full support
Firefox for Android – No support
Firefox for Android
footnote No support
Opera Android – Full support
Opera Android 74 (Release date: 2023-03-13)
footnote Full support
Safari on iOS – Full support
Safari on iOS 15.4 (Release date: 2022-03-14)
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 15.4 (Release date: 2022-03-14)
footnote Full support
style
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 71 (Release date: 2019-12-10)
footnote Full support
Opera – Full support
Opera 95 (Release date: 2023-02-01)
footnote Full support
Safari – Full support
Safari 13.1 (Release date: 2020-03-24)
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 79 (Release date: 2020-07-28)
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 13.4 (Release date: 2020-03-24)
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 13.4 (Release date: 2020-03-24)
footnote Full support
Returns CSSStyleProperties (not CSSStyleDeclaration)
Chrome – No support
Chrome
footnote No support
Edge – No support
Edge
footnote No support
Firefox – Full support
Firefox 145 (Release date: 2025-11-11)
footnote Full support
Opera – No support
Opera
footnote No support
Safari – Full support
Safari 26 (Release date: 2025-09-15)
footnote Full support
Chrome Android – No support
Chrome Android
footnote No support
Firefox for Android – Full support
Firefox for Android 145 (Release date: 2025-11-11)
footnote Full support
Opera Android – No support
Opera Android
footnote No support
Safari on iOS – Full support
Safari on iOS 26 (Release date: 2025-09-15)
footnote Full support
Samsung Internet – No support
Samsung Internet
footnote No support
WebView Android – No support
WebView Android
footnote No support
WebView on iOS – Full support
WebView on iOS 26 (Release date: 2025-09-15)
footnote Full support
tabIndex
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 71 (Release date: 2019-12-10)
footnote Full support
Opera – Full support
Opera 95 (Release date: 2023-02-01)
footnote Full support
Safari – Full support
Safari 13.1 (Release date: 2020-03-24)
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 79 (Release date: 2020-07-28)
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 13.4 (Release date: 2020-03-24)
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 13.4 (Release date: 2020-03-24)
footnote Full support

Legend

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

Full support
Full support
No support
No support
See implementation notes.

See also