<!DOCTYPE html> <html> <head> <title>Test mpadded</title> </head> <body> <math> <mpadded mathbackground="blue" width="100px" height="3height" depth="3depth" lspace="0" voffset="10px"> <mpadded mathbackground="red" width="20px" height="10px" depth="10px"> </mpadded> </mpadded> </math> </body> </html>