<!DOCTYPE html> <html> <head> <title>displaystyle</title> <meta charset="utf-8"/> </head> <body> <!-- Test the effect of displaystyle on munder, mover and munderover --> <math> <mstyle displaystyle="true"> <munder><mo>O</mo><mo>O</mo></munder> <mover><mo>O</mo><mo>O</mo></mover> <munderover><mo>O</mo><mo>O</mo><mo>O</mo></munderover> </mstyle> <mstyle displaystyle="false"> <msub><mo>O</mo><mo>O</mo></msub> <msup><mo>O</mo><mo>O</mo></msup> <msubsup><mo>O</mo><mo>O</mo><mo>O</mo></msubsup> </mstyle> </math> </body> </html>