HTML5 MathML voffset Attribute

Definition and usage

The voffset attribute moves the visual position of content up (positive value) or down (negative value). It is a length such as 3px or 0.2em. It changes only the drawn position, which is useful for fine-tuning alignment.

Which elements use it

• <mpadded> - shifts its child content vertically.

Example

<math>
  <mrow>
    <mi>a</mi>
    <mo>+</mo>
    <mpadded voffset="4px">
      <mi>b</mi>
    </mpadded>
  </mrow>
</math>

The identifier b is drawn 4px higher than its natural position while a and the operator stay put.