files/en-us/web/mathml/reference/element/mtr/index.md
The <mtr> MathML element represents a row in a table or a matrix. It may only appear in a {{ MathMLElement("mtable") }} element and its children are {{ MathMLElement("mtd") }} elements representing cells. This element is similar to the {{ HTMLElement("tr") }} element of HTML.
This element's attributes include the global MathML attributes. Some browsers may also support the following attributes:
columnalign {{Non-standard_Inline}}
columnalign="left center right"). Possible values are: left, center and right.rowalign {{Non-standard_Inline}}
axis, baseline, bottom, center and top.{{Specifications}}
{{Compat}}