Common Attribute Support

Attribute	Implemented?	Comments
class	Yes
href	No
id	No	The id attribute is not recognized by the host language (XHTML or HTML5).
other	No	This attribute is deprecated in MathML 3 (see Section 2.1.6).
style	Yes
xref	No

Presentation Markup Supported

Common Presentation Attributes

Attribute	Implemented?	Comments
mathcolor	Yes
mathbackground	Yes

Presentation Elements

Element	Implemented?	Comments
maction	No
math	Partial	Only the display attribute is supported.
menclose	No
merror	Partial	There is no inferred row support.
mfenced	Yes
mfrac	Partial	The bevelled attribute is not supported.
mglyph	No
mi	Partial	The dir attribute is not supported. The font style does not change to normal when the content is more than a single character.
mlabeledtr	No
mlongdiv	No
mmultiscripts	No
mn	Partial	The dir attribute is not supported.
mo	Partial	The accent, dir, largeop, lspace, maxsize, minsize, movablelimits, rspace, and symmetric attributes are not supported.
mover	Partial	The accent and align attributes are not supported.
mpadded	No
mphantom	Yes
mroot	Partial	The displaystyle, decimalpoint, infixlinebreakstyle, scriptlevel, scriptminsize, and scriptsizemultiplier attributes are not supported.
mrow	Partial	The dir attribute is not supported.
ms	No
mscarries	No
mscarry	No
msgroup	No
msline	No
mspace	No
msrow	No
mstack	No
mstyle	Partial	The displaystyle, decimalpoint, infixlinebreakstyle, scriptlevel, scriptminsize, and scriptsizemultiplier attributes are not supported. Inferred rows are not supported.
msqrt	Partial	The displaystyle, decimalpoint, infixlinebreakstyle, scriptlevel, scriptminsize, and scriptsizemultiplier attributes are not supported.
msub	Partial	The subscriptshift attribute is not supported.
msup	Partial	The superscriptshift attribute is not supported.
msubsup	Partial	The subscriptshift and superscriptshift attributes are not supported.
mtable	Partial	The alignmentscope, columnspacing, columnwidth, displaystyle, equalcolumns, equalrows, framespacing, groupalign, minlabelspacing, rowspacing, side, width attributes are not supported.
mtd	Partial	The groupalign attribute is not supported.
mtext	Partial	The dir attribute is not supported.
mtr	Partial	The groupalign attribute is not supported.
munder	Partial	The accentunder and align attributes are not supported.
munderover	Partial	The accent, accentunder, and align attributes are not supported.

Content Markup Supported

Content Markup is not currently supported except for any CSS style support inherited via the class and style attributes.

W3C Test Suite

See the MathML 3 testsuite results page.