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.

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).
未实现 alignmentscope	<mtable>	A Boolean value specifying whether table columns should act as alignment scopes or not.
未实现 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.
未实现 charalign	<mstack>	Specifies the horizontal alignment of digits.
close	<mfenced>	A string for the closing delimiter.
columnalign	<mtable>, <mtd>, <mtr>, <mlabeledtr>	Specifies the horizontal alignment of table cells.
columnlines	<mtable>	Specifies table column borders.
未实现 columnspacing	<mtable>	Specifies the space between table columns.
columnspan	<mtd>	A non-negative integer value that indicates on how many table columns does the cell extend.
未实现 columnwidth	<mtable>	Specifies the width of table columns.
未实现 crossout	<mscarry>	Specifies what kind of line is drawn to cross out carries.
未实现 decimalpoint	<mstyle>	If the decimalpoint value is used to specify the alignment, this attribute is specifying the character for the alignment point within <mstack> and <mtable> columns.
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	<mstyle>, <mtable>	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.
未实现 edge	<malignmark>
未实现 equalcolumns	<mtable>	A Boolean value indicating whether to force all columns to have the same total height.
未实现 equalrows	<mtable>	A Boolean value indicating whether to force all rows to have the same total height.
fence	<mo>	A Boolean value specifying whether the operator is a fence (such as parentheses). There is no visual effect for this attribute.
未实现 form	<mo>	Specifies the role of the operator in an enclosed expression.
frame	<mtable>	Specifies borders of an entire <mtable>. Possible values are: none (default), solid and dashed.
未实现 framespacing	<mtable>	Specifies additional space added between the table and frame.
未实现 groupalign	<maligngroup>, <mtable>, <mtd>, <mtr>
height	<mglyph>, <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.
未实现 indentalign	<mo>, <mspace>
未实现 indentalignfirst	<mo>, <mspace>
未实现 indentalignlast	<mo>, <mspace>
未实现 indentshift	<mo>, <mspace>
未实现 indentshiftfirst	<mo>, <mspace>
未实现 indentshiftlast	<mo>, <mspace>
未实现 indenttarget	<mo>, <mspace>
未实现 infixlinebreakstyle	<mstyle>	Specifies the default linebreakstyle to use for infix operators.
largeop	<mo>	Specifies whether the operator should be drawn larger than normal.
length	<msline>
未实现 linebreak	<mo>, <mspace>
未实现 linebreakmultchar	<mo>, <mspace>
未实现 linebreakstyle	<mo>, <mspace>
未实现 lineleading	<mo>, <mspace>
linethickness	<mfrac>	The thickness of the horizontal fraction line.
未实现 location	<mscarries>
未实现 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 "&quot;".
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. Starting with Gecko 20.0 (Firefox 20 / Thunderbird 20 / SeaMonkey 2.17) unitless values are allowed and are interpreted as N times of the default size.
mathvariant	<mi>, <mn>, <mo>, <ms>, <mtext>	The logical class of the identifier, which varies in typography.
maxsize	<mo>	The maximum size of the operator.
未实现 minlabelspacing	<mtable>	A length value specifing the minimum space between a label and the adjacent cell in the row.
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.
未实现 overflow	<math>	If an expression is too long to fit in the allowed width, this attribute sets the preferred handling.
未实现 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 "&quot;".
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. Starting with Gecko 20.0 (Firefox 20 / Thunderbird 20 / SeaMonkey 2.17) unitless values and percent values are allowed and interpreted as multiple of "8pt".
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.
未实现 shift	<msgroup>
未实现 side	<mtable>	Specifies the position where <mlabeledtr> label elements should be placed.
未实现 src	<mglyph>	The location of the image resource.
未实现 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	<mglyph>, <mpadded>, <mspace>, <mtable>	Specifies the desired width. See lengths for possible values.
xlink:href	All	Can be used to set a hyperlink to a specfied URI. However, authors are encouraged to use the href attribute instead.
xmlns	<math>	Specifies the URI for the MathML namespace (https://www.w3.org/1998/Math/MathML)