mathsize

The mathsize global attribute sets the font-size of a MathML element.

Read More at MDN DocsView Spec

Safe to Use

Deprecated: This feature has been formally deprecated and should no longer be used. Learn More

mathsize is mostly safe to use.

It’s supported by 85% of global browsers.

Browsers

ChromeJan 10, 2023v109.0.0
23%╱88%
There are no users of Chrome running a supported version.
SafariJun 7, 2010v5.0.0
5%╱100%
100% of Safari users are running a supported version.
EdgeJan 12, 2023v109.0.0
4%╱98%
There are no users of Edge running a supported version.
FirefoxOct 22, 2019v70.0.0
2%╱98%
There are no users of Firefox running a supported version.

Version Breakdown

 
Agent
Support
Adoption
Chrome
Jan 10, 2023 v109.0.0
23%╱88%
There are no users of Chrome running a supported version.
Jan 10, 2023 – Latest
v109.0.0+
23%╱88%

Full Support

Feb 4, 2020 – Latest
v80.0.0+
25%╱96%

This feature is behind the #enable-experimental-web-platform-features preference (needs to be set to Enabled

Chrome Android
Jan 10, 2023 v109.0.0
32%╱90%
There are no users of Chrome Android running a supported version.
Jan 10, 2023 – Latest
v109.0.0+
32%╱90%

Full Support

Feb 4, 2020 – Latest
v80.0.0+
36%╱100%

This feature is behind the #enable-experimental-web-platform-features preference (needs to be set to Enabled

Edge
Jan 12, 2023 v109.0.0
4%╱98%
There are no users of Edge running a supported version.
Jan 12, 2023 – Latest
v109.0.0+
4%╱98%

Full Support

Feb 7, 2020 – Latest
v80.0.0+
5%╱100%

This feature is behind the #enable-experimental-web-platform-features preference (needs to be set to Enabled

Firefox
Oct 22, 2019 v70.0.0
2%╱98%
There are no users of Firefox running a supported version.
Oct 22, 2019 – Latest
v70.0.0+
2%╱98%

Full Support

Nov 9, 2004 – Latest
v1.0.0+
3%╱100%

Partial Support

Attribute only accepted on a few elements, as specified in MathML 3.

Firefox for Android
Jul 28, 2020 v79.0.0
Firefox for Android supports this feature.
Jul 28, 2020 – Latest
v79.0.0+

Full Support

Mar 29, 2011 – Latest
v4.0.0+

Partial Support

Attribute only accepted on a few elements, as specified in MathML 3.

Internet Explorer
Unsupported
Internet Explorer does not support this feature.

No Support

 
Quest Browser
Unsupported
Quest Browser does not support this feature.
Unknown
v9.0.0+

This feature is behind the #enable-experimental-web-platform-features preference (needs to be set to Enabled

Opera
Unsupported
Opera does not support this feature.

No Support

Opera Android
Mar 13, 2023 v74.0.0
Opera Android supports this feature.
Mar 13, 2023 – Latest
v74.0.0+

Full Support

Safari
Jun 7, 2010 v5.0.0
5%╱100%
100% of Safari users are running a supported version.
Jun 7, 2010 – Latest
v5.0.0+
5%╱100%

Full Support

Safari on iOS
Nov 22, 2010 v4.2.0
17%╱100%
100% of Safari on iOS users are running a supported version.
Nov 22, 2010 – Latest
v4.2.0+
17%╱100%

Full Support

Samsung Internet
May 19, 2023 v21.0.0
2%╱79%
There are no users of Samsung Internet running a supported version.
May 19, 2023 – Latest
v21.0.0+
2%╱79%

Full Support

WebView Android
Jan 10, 2023 v109.0.0
WebView Android supports this feature.
Jan 10, 2023 – Latest
v109.0.0+

Full Support

See Also

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