coderef

MathMLBaseline · Widely available

MathML, or the Mathematical Markup Language, describes mathematical notation, such as expressions and formulas. Also known as MathML Core.

Supported in all major browsers for at least 30 months — safe to use without fallbacks. Baseline since Jan 12, 2023. Widely available since Jul 12, 2025.

How to use ↓Compare browsers

Browser support

DesktopChrome
1–108Not supported
109+Supportedsince Jan 10, 2023
Current: 155
Edge
12–108Not supported
109+Supportedsince Jan 12, 2023
Current: 154
Firefox
1–3.6Not supported
4+Supportedsince Mar 22, 2011
Current: 157
Safari
1–5Not supported
5.1+Supportedsince Jul 20, 2011
Current: 27
MobileChrome Android
18–108Not supported
109+Supportedsince Jan 10, 2023
Current: 155
Firefox Android
4+Supportedsince Mar 29, 2011
Current: 157
Safari iOS
1–4.2Not supported
5+Supportedsince Oct 12, 2011
Current: 27

How to use

This feature is Baseline widely available — use it freely, no fallback needed.

Example

Full syntax and examples are on MDN: MathMLElement.

Feature detection

JS · check before using
if ("MathMLElement" in globalThis) {
  // MathMLElement is available
} else {
  // load a polyfill or use a fallback
}

Documentation (MDN)

Specification

Usage share

Sub-features

Support for each part of the feature (106). The overall table above shows when the whole feature works.

Sub-featureChromeEdgeFirefoxSafariChrome AndroidFirefox AndroidSafari iOS
MathMLElement1091097113.11097913.4
MathMLElement.attributeStyleMap109109✕16.4109✕16.4
MathMLElement.blur1091097113.11097913.4
MathMLElement.focus1091097113.11097913.4
MathMLElement.nonce10910915215.410915215.4
MathMLElement.style1091097113.11097913.4
MathMLElement.tabIndex1091097113.11097913.4
display.math109109✕✕109✕✕
font-size.math10910911726.410911726.4
math-depth10910911726.410911726.4
math-shift10910914626.210914626.2
math-style10910911714.110911714.5
text-transform.math-auto109109117✕109117✕
mathml.elements.annotation1091091510944.2
mathml.elements.annotation-xml1091091510944.2
mathml.elements.math10910945.110945
mathml.elements.math.display10910945.110945
mathml.elements.menclose✕✕17✕47
mathml.elements.menclose.notation✕✕17✕47
mathml.elements.menclose.notation.actuarial✕✕17✕47
Show 86 more
Sub-featureChromeEdgeFirefoxSafariChrome AndroidFirefox AndroidSafari iOS
mathml.elements.menclose.notation.bottom✕✕17✕47
mathml.elements.menclose.notation.box✕✕17✕47
mathml.elements.menclose.notation.circle✕✕17✕47
mathml.elements.menclose.notation.downdiagonalstrike✕✕17✕47
mathml.elements.menclose.notation.horizontalstrike✕✕17✕47
mathml.elements.menclose.notation.left✕✕17✕47
mathml.elements.menclose.notation.longdiv✕✕17✕47
mathml.elements.menclose.notation.madruwb✕✕27✕47
mathml.elements.menclose.notation.phasorangle✕✕32✕✕32✕
mathml.elements.menclose.notation.right✕✕17✕47
mathml.elements.menclose.notation.roundedbox✕✕17✕47
mathml.elements.menclose.notation.top✕✕17✕47
mathml.elements.menclose.notation.updiagonalarrow✕✕24✕✕24✕
mathml.elements.menclose.notation.updiagonalstrike✕✕17✕47
mathml.elements.menclose.notation.verticalstrike✕✕17✕47
mathml.elements.merror1091091610946
mathml.elements.mfrac10910915.110945
mathml.elements.mfrac.linethickness1091091910949
mathml.elements.mi1091091610946
mathml.elements.mi.mathvariant10910970101097910
mathml.elements.mmultiscripts1091091610946
mathml.elements.mn1091091610946
mathml.elements.mo1091091510944.2
mathml.elements.mo.accent✕✕110✕410
mathml.elements.mo.form1091091810948
mathml.elements.mo.largeop1091091810948
mathml.elements.mo.lspace1091091810948
mathml.elements.mo.maxsize1091091810948
mathml.elements.mo.minsize1091091810948
mathml.elements.mo.movablelimits109109110109410
mathml.elements.mo.rspace1091091810948
mathml.elements.mo.stretchy1091091510944.2
mathml.elements.mo.symmetric1091091810948
mathml.elements.mover1091091610946
mathml.elements.mover.accent109109110109410
mathml.elements.mpadded1091091610946
mathml.elements.mpadded.depth109109110109410
mathml.elements.mpadded.height109109110109410
mathml.elements.mpadded.lspace109109110109410
mathml.elements.mpadded.relative_values✕✕1✕✕4✕
mathml.elements.mpadded.voffset109109710109710
mathml.elements.mpadded.width109109110109410
mathml.elements.mphantom1091091610946
mathml.elements.mprescripts1091091610946
mathml.elements.mroot1091091610946
mathml.elements.mrow1091091610946
mathml.elements.ms1091091910949
mathml.elements.mspace1091091710947
mathml.elements.mspace.depth1091091710947
mathml.elements.mspace.height1091091710947
mathml.elements.mspace.width1091091710947
mathml.elements.msqrt10910915.110945
mathml.elements.mstyle10910965.110965
mathml.elements.msub1091091610946
mathml.elements.msubsup1091091610946
mathml.elements.msup1091091610946
mathml.elements.mtable10910915.110945
mathml.elements.mtable.align✕✕1✕✕4✕
mathml.elements.mtable.columnalign✕✕15.1✕45
mathml.elements.mtable.columnlines✕✕15.1✕45
mathml.elements.mtable.columnspacing✕✕33✕✕33✕
mathml.elements.mtable.frame✕✕15.1✕45
mathml.elements.mtable.framespacing✕✕33✕✕33✕
mathml.elements.mtable.rowalign✕✕15.1✕45
mathml.elements.mtable.rowlines✕✕15.1✕45
mathml.elements.mtable.rowspacing✕✕33✕✕33✕
mathml.elements.mtable.width✕✕13✕✕14✕
mathml.elements.mtd10910915.110945
mathml.elements.mtd.columnalign✕✕15.1✕45
mathml.elements.mtd.columnspan11711715.111745
mathml.elements.mtd.rowalign✕✕15.1✕45
mathml.elements.mtd.rowspan11711715.111745
mathml.elements.mtext1091091610946
mathml.elements.mtr10910915.110945
mathml.elements.mtr.columnalign✕✕15.1✕45
mathml.elements.mtr.rowalign✕✕15.1✕45
mathml.elements.munder10910915.110945
mathml.elements.munder.accentunder109109110109410
mathml.elements.munderover1091091610946
mathml.elements.munderover.accent109109110109410
mathml.elements.munderover.accentunder109109110109410
mathml.elements.semantics1091091510944.2
mathml.global_attributes.dir109109708109798
mathml.global_attributes.dir.rtl_operator_mirroring144144146✕144146✕
mathml.global_attributes.displaystyle10910983141098314
mathml.global_attributes.scriptlevel10910970✕10979✕