<!DOCTYPE html> <html> <head> <title>alignment of mmultiscript sub/superscripts</title> </head> <body> <math> <mmultiscripts> <mspace width="50px" height="50px" mathbackground="red"/> <mrow> <mspace width="50px" height="10px" mathbackground="blue"/> </mrow> <mspace width="100px" height="10px" mathbackground="green"/> <mprescripts/> <mrow> <mspace width="50px" height="10px" mathbackground="blue"/> </mrow> <mspace width="100px" height="10px" mathbackground="green"/> </mmultiscripts> </math> <br/> <math> <mmultiscripts> <mspace width="50px" height="50px" mathbackground="red"/> <mspace width="100px" height="10px" mathbackground="green"/> <mrow> <mspace width="50px" height="10px" mathbackground="blue"/> </mrow> <mprescripts/> <mspace width="100px" height="10px" mathbackground="green"/> <mrow> <mspace width="50px" height="10px" mathbackground="blue"/> </mrow> </mmultiscripts> </math> </body> </html>