22.1.2.11 borderBox

This element specifies the Border Box object, consisting of a border drawn around an instance of mathematical 2 2 2 text (such as a formula or equation), as in 𝑎 + 𝑏 = 𝑐 . If borderBoxPr is omitted then the default behavior of borderBox is a rectangular border (as shown in the “abc” example below).

[Example: The following example shows the XML representation of the following Border Box: 𝑎𝑏𝑐

<m:borderBox>
  <m:e>
    <m:r>
      <m:t>abc</m:t>
    </m:r>
  </m:e>
</m:borderBox>

end example]

[Note: The W3C XML Schema definition of this element’s content model (CT_BorderBox) is located in A.6.1. end note]