layer at (0,0) size 800x600
  RenderCanvas at (0,0) size 800x600
layer at (0,0) size 800x116
  RenderBlock {HTML} at (0,0) size 800x116
    RenderBody {BODY} at (8,8) size 784x100
      RenderBlock (anonymous) at (0,0) size 784x18
        RenderInline {DIV} at (0,0) size 528x16 [color=#FFFFFF] [bgcolor=#FF0000]
          RenderText {TEXT} at (0,1) size 528x16
            text run at (0,1) width 528: "Ahem_font_required_for_this_test."
        RenderText {TEXT} at (0,0) size 0x0
      RenderBlock {P} at (0,34) size 784x18
        RenderText {TEXT} at (0,0) size 346x18
          text run at (0,0) width 346: "There should be a single green rectangle square below."
      RenderBlock {DIV} at (0,68) size 64x32 [color=#008000] [bgcolor=#FF0000]
        RenderBlock {DIV} at (32,0) size 32x32
          RenderBlock (compact) {DIV} at (-32,0) size 64x0
            RenderText {TEXT} at (0,0) size 32x32
              text run at (0,0) width 32: "X"
          RenderText {TEXT} at (0,0) size 32x32
            text run at (0,0) width 32: "X"