| <!DOCTYPE html> | |
| <p>Vertical or non-stretchy operators inside an munderover element should not stretch.</p> | |
| <math style="font: 20px Ahem"> | |
| <munderover> | |
| <mspace width="100px" height="10px" mathbackground="red"/> | |
| <mo lspace="0px" rspace="0px">|</mo> <!-- stretchy vertical operator --> | |
| <mo lspace="0px" rspace="0px" stretchy="false" accent="false">_</mo> <!-- non-stretchy horizontal operator --> | |
| </munderover> | |
| </math> |