<!DOCTYPE html> <html> <head> <title>embellished operators 1: maction</title> </head> <body> <div> <!-- maction whose selected child is embellished op --> <math xmlns="http://www.w3.org/1998/Math/MathML"> <mover> <mtext>abcdef</mtext> <maction actiontype="toggle" selection="2"> <mo stretchy="false">¯</mo> <mo>¯</mo> </maction> </mover> </math> </div> </body> </html>