layer at (0,0) size 800x600
  RenderCanvas at (0,0) size 800x600
layer at (0,0) size 800x106
  RenderBlock {HTML} at (0,0) size 800x106
    RenderBody {BODY} at (8,8) size 784x90
      RenderBlock (anonymous) at (0,0) size 784x17
        RenderInline {DIV} at (0,0) size 462x14 [color=#FFFFFF] [bgcolor=#FF0000]
          RenderText {TEXT} at (0,3) size 462x14
            text run at (0,3) width 462: "Ahem_font_required_for_this_test."
        RenderText {TEXT} at (0,0) size 0x0
      RenderBlock {P} at (0,31) size 784x17
        RenderText {TEXT} at (0,0) size 377x17
          text run at (0,0) width 377: "There should be a single green rectangle square below."
      RenderBlock {DIV} at (0,62) size 56x28 [color=#008000] [bgcolor=#FF0000]
        RenderBlock {DIV} at (28,0) size 28x28 [bgcolor=#000000]
          RenderBlock (compact) {DIV} at (-28,0) size 56x0
            RenderText {TEXT} at (0,0) size 28x28
              text run at (0,0) width 28: "X"
          RenderText {TEXT} at (0,0) size 28x28
            text run at (0,0) width 28: "X"