Ahem_font_required_for_this_test.

If scripting is supported: there should be only a single static jumble below with the word "Control" blinking steadily. If there are two squares, or if the square is animated, then the test has failed.

If scripting is unsupported: there should be two identical patterned squares below.

1
222222222
3 444 55555555 66666 777777777

    ############
    #AA1       #
    #AA        #
    #222222222 #
    #BCDEEF3   #
    #BC EE444  #
    # C55555555#
    # C66666   #
    # C        #
    #777777777 #
    #          #
    ############ Control