MathML attribute reference

This is an alphabetical list of MathML attributes. More details for each attribute are available on particular element pages.

Notes:

The MathML <mstyle> and <math> elements accept all attributes of all MathML presentation elements.
See values for notes on values and units in MathML.
The attributes background, color, fontfamily, fontsize, fontstyle, fontweight and xlink:href are deprecated.
The XLink attributes on MathML elements: xlink:actuate, xlink:href, xlink:show and xlink:type are deprecated as well.

Name	Elements accepting attribute	Description
`accent`	`<mo>`, `<mover>`, `<munderover>`	A Boolean value specifying whether the operator should be treated as an accent.
`accentunder`	`<munder>`, `<munderover>`	A Boolean value specifying whether the operator should be treated as an accent.
`actiontype`	`<maction>`	A string value specifying the action happening for this element.
`align`	`<mtable>` `<munder>`, `<mover>`, `<munderover>` `<mstack>`	Specifies different alignments of several elements (see element pages for details).
Unimplemented `altimg` `altimg-width` `altimg-height` `altimg-valign` `alttext`	`<math>`	Visual and textual fall-back options.
`bevelled`	`<mfrac>`	Specifies the style how the fraction should be displayed. Deprecated. Use U+2044 (fraction slash) instead.
Unimplemented `charalign`	`<mstack>`	Specifies the horizontal alignment of digits.
`close`	`<mfenced>`	A string for the closing delimiter.
`columnalign`	`<mtable>`, `<mtd>`, `<mtr>`	Specifies the horizontal alignment of table cells.
`columnlines`	`<mtable>`	Specifies table column borders.
`columnspacing`	`<mtable>`	Specifies the space between table columns.
`columnspan`	`<mtd>`	A non-negative integer value that indicates over how many table columns the cell extends.
Unimplemented `crossout`	`<mscarry>`	Specifies what kind of line is drawn to cross out carries.
`denomalign`	`<mfrac>`	The alignment of the denominator under the fraction.
`depth`	`<mpadded>`	Sets or increments the depth. See length.
`dir`	`<math>`, `<mi>`, `<mo>`, `<mrow>`, `<ms>`, `<mtext>`	The text direction. Possible values are either ltr (left to right) or rtl (right to left).
`display`	`<math>`	Specifies the rendering mode. The values `block` and `inline` are allowed.
`displaystyle`	All	A Boolean value specifying whether more vertical space is used for displayed equations or, if set to `false`, a more compact layout is used to display formulas. In MathML 3 this attribute was only valid on `<mstyle>`, `<mtable>`, and `<math>`.
Unimplemented `edge`	`<malignmark>`
`fence`	`<mo>`	A Boolean value specifying whether the operator is a fence (such as parentheses). There is no visual effect for this attribute.
`frame`	`<mtable>`	Specifies borders of an entire `<mtable>`. Possible values are: `none` (default), `solid` and `dashed`.
`framespacing`	`<mtable>`	Specifies additional space added between the table and `frame`.
Unimplemented `groupalign`	`<maligngroup>`
`height`	`<mpadded>`, `<mspace>`	Specifies the desired height. See lengths for possible values.
`href`	All	Used to set a hyperlink to a specified URI.
`id`	All	Sets up a unique identifier associated with the element.
Unimplemented `indentalign`	`<mo>`, `<mspace>`
Unimplemented `indentalignfirst`	`<mo>`, `<mspace>`
Unimplemented `indentalignlast`	`<mo>`, `<mspace>`
Unimplemented `indentshift`	`<mo>`, `<mspace>`
Unimplemented `indentshiftfirst`	`<mo>`, `<mspace>`
Unimplemented `indentshiftlast`	`<mo>`, `<mspace>`
Unimplemented `indenttarget`	`<mo>`, `<mspace>`
Unimplemented `infixlinebreakstyle`	`<mstyle>`	Specifies the default `linebreakstyle` to use for infix operators.
`length`	`<msline>`
Unimplemented `linebreak`	`<mo>`
Unimplemented `linebreakmultchar`	`<mo>`, `<mspace>`
Unimplemented `linebreakstyle`	`<mo>`, `<mspace>`
Unimplemented `lineleading`	`<mo>`, `<mspace>`
`linethickness`	`<mfrac>`	The thickness of the horizontal fraction line.
Unimplemented `location`	`<mscarries>`
Unimplemented `longdivstyle`	`<mlongdiv>`	Controls the style of the long division layout.
`lspace`	`<mo>`, `<mpadded>`	The amount of space before the operator (see length for values and units).
`lquote`	`<ms>`	The opening quote character (depends on `dir`) to enclose the content. The default value is "`"`".
`mathbackground`	All	The background color. You can use `#rgb`, `#rrggbb` and HTML color names.
`mathcolor`	All	The text color. You can use `#rgb`, `#rrggbb` and HTML color names.
`mathsize`	`<mi>`, `<mn>`, `<mo>`, `<ms>`, `<mtext>`	The size of the content.
`mathvariant`	`<mi>`, `<mn>`, `<mo>`, `<ms>`, `<mtext>`	The logical class of the identifier, which varies in typography.
`maxsize`	`<mo>`	The maximum size of the operator.
`minsize`	`<mo>`	The minimum size of the operator.
`movablelimits`	`<mo>`	Specifies whether attached under- and overscripts move to sub- and superscript positions.
`notation`	`<menclose>`	A list of notations, separated by white space, to apply to the child elements.
`numalign`	`<mfrac>`	The alignment of the numerator over the fraction.
`open`	`<mfenced>`	A string for the opening delimiter.
Unimplemented `position`	`<msgroup>`, `<msrow>`, `<mscarries>`, `<msline>`
`rowalign`	`<mtable>`, `<mtd>`, `<mtr>`	Specifies the vertical alignment of table cells.
`rowlines`	`<mtable>`	Specifies table row borders.
`rowspacing`	`<mtable>`	Specifies the space between table rows.
`rowspan`	`<mtd>`	A non-negative integer value that indicates on how many rows does the cell extend.
`rspace`	`<mo>`	The amount of space after the operator.
`rquote`	`<ms>`	The closing quote mark (depends on `dir`) to enclose the content. The default value is "`"`".
`scriptlevel`	`<mstyle>`	Controls mostly the font-size. The higher the `scriptlevel`, the smaller the font size.
`scriptminsize`	`<mstyle>`	Specifies a minimum font size allowed due to changes in `scriptlevel`.
`scriptsizemultiplier`	`<mstyle>`	Specifies the multiplier to be used to adjust font size due to changes in `scriptlevel`.
`selection`	`<maction>`	The child element which is addressed by the action.
`separator`	`<mo>`	There is no visual effect for this attribute, but it specifies whether the operator is a separator (such as commas).
`separators`	`<mfenced>`	A sequence of zero or more characters to be used for different separators.
Unimplemented `shift`	`<msgroup>`
Unimplemented `stackalign`	`<mstack>`
`stretchy`	`<mo>`	Specifies whether the operator stretches to the size of the adjacent element.
`subscriptshift`	`<mmultiscripts>`, `<msub>`, `<msubsup>`	The minimum space by which to shift the subscript below the baseline of the expression.
`supscriptshift`	`<mmultiscripts>`, `<msup>`, `<msubsup>`	The minimum space by which to shift the superscript above the baseline of the expression.
`symmetric`	`<mo>`	If `stretchy` is `true`, this attribute specifies whether the operator should be vertically symmetric around the imaginary math axis (centered fraction line).
`voffset`	`<mpadded>`	Sets the vertical position of the child content.
`width`	`<mpadded>`, `<mspace>`, `<mtable>`	Specifies the desired width. See lengths for possible values.
`xlink:href`	All	Can be used to set a hyperlink to a specified URI. However, authors are encouraged to use the `href` attribute instead.
`xmlns`	`<math>`	Specifies the URI for the MathML namespace (`http://www.w3.org/1998/Math/MathML`)