HTML5 MathML

HTML5 MathML rowalign Attribute

The rowalign attribute controls the vertical alignment of cell contents within one or more table rows. It can be set on <mtable>, <mtr> or a single <mtd>.

Definition and usage

The rowalign attribute accepts values such as top, center, bottom, baseline and axis. On <mtable> it provides a space-separated list of alignments applied to successive rows; on <mtr> and <mtd> it aligns a specific row or cell.

Which elements use it

<mtable> - a list of vertical alignments for each row.
<mtr> - vertical alignment of the row.
<mtd> - vertical alignment of a single cell.

Example

Aligning cells to the top of a row

<math>
  <mtable>
    <mtr rowalign="top">
      <mtd><mn>1</mn></mtd>
      <mtd><mfrac><mn>1</mn><mn>2</mn></mfrac></mtd>
    </mtr>
  </mtable>
</math>

With rowalign="top", the number 1 and the fraction align by their tops rather than their baselines.

⚠️

The rowalign attribute is not part of MathML Core and support varies; Firefox generally honours it while Chromium may not.

HTML5 MathML rowalign Attribute

Definition and usage

Which elements use it

Example

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