<mstyle>

Read More at MDN DocsView Spec

Safe to Use

<mstyle> is mostly safe to use.

It’s supported by 86% of global browsers.

Browsers

ChromeJan 10, 2023v109.0.0
23%╱88%
There are no users of Chrome running a supported version.
SafariJul 20, 2011v5.1.0
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.
FirefoxAug 16, 2011v6.0.0
3%╱100%
100% of Firefox users are 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

Jan 19, 2021 – Latest
v88.0.0+
24%╱93%

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

Feb 4, 2020 – Latest
v80.0.0+
25%╱96%

Partial Support

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

Only basic support with attributes dir, mathbackground, mathcolor and mathsize.

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

Jan 19, 2021 – Latest
v88.0.0+
35%╱98%

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

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

Partial Support

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

Only basic support with attributes dir, mathbackground, mathcolor and mathsize.

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

Jan 21, 2021 – Latest
v88.0.0+
5%╱100%

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

Feb 7, 2020 – Latest
v80.0.0+
5%╱100%

Partial Support

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

Only basic support with attributes dir, mathbackground, mathcolor and mathsize.

Firefox
Aug 16, 2011 v6.0.0
3%╱100%
100% of Firefox users are running a supported version.
Aug 16, 2011 – Latest
v6.0.0+
3%╱100%

Full Support

In Firefox 29, accepted attributes have been restricted to those actually used in practice: id, class, style, href, mathcolor, mathbackground, scriptlevel, displaystyle, scriptsizemultiplier, scriptminsize, dir, mathsize, mathvariant, fontfamily, fontweight, fontstyle, fontsize, color, background.

In Firefox 103, attributes scriptsizemultiplier and scriptminsize have been removed.

Nov 9, 2004 – Latest
v1.0.0+
3%╱100%

Partial Support

Attributes bevelled, notation, open, close, separators, accent, accentunder, selection, mathvariant are not supported.

Firefox for Android
Aug 16, 2011 v6.0.0
Firefox for Android supports this feature.
Aug 16, 2011 – Latest
v6.0.0+

Full Support

In Firefox 29, accepted attributes have been restricted to those actually used in practice: id, class, style, href, mathcolor, mathbackground, scriptlevel, displaystyle, scriptsizemultiplier, scriptminsize, dir, mathsize, mathvariant, fontfamily, fontweight, fontstyle, fontsize, color, background.

In Firefox 103, attributes scriptsizemultiplier and scriptminsize have been removed.

Mar 29, 2011 – Latest
v4.0.0+

Partial Support

Attributes bevelled, notation, open, close, separators, accent, accentunder, selection, mathvariant are not supported.

Internet Explorer
Unsupported
Internet Explorer does not support this feature.

No Support

 
Quest Browser
Unsupported
Quest Browser does not support this feature.
Unknown
v14.0.0+

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

Unknown
v9.0.0+

Partial Support

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

Only basic support with attributes dir, mathbackground, mathcolor and mathsize.

Opera
Feb 1, 2023 v95.0.0
0%╱5%
There are no users of Opera running a supported version.
Feb 1, 2023 – Latest
v95.0.0+
0%╱5%

Full Support

Feb 2, 2021 – Latest
v74.0.0+
0%╱52%

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

Mar 3, 2020 – Latest
v67.0.0+
1%╱95%

Partial Support

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

Only basic support with attributes dir, mathbackground, mathcolor and mathsize.

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

Full Support

Safari
Jul 20, 2011 v5.1.0
5%╱100%
100% of Safari users are running a supported version.
Jul 20, 2011 – Latest
v5.1.0+
5%╱100%

Full Support

Safari on iOS
Oct 12, 2011 v5.0.0
17%╱100%
There are no users of Safari on iOS running a supported version.
Oct 12, 2011 – Latest
v5.0.0+
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

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