layer at (0,0) size 800x600
  RenderView at (0,0) size 800x600
layer at (0,0) size 800x600
  RenderBlock {HTML} at (0,0) size 800x600
    RenderBody {BODY} at (0,0) size 800x600
      RenderBlock {DIV} at (0,0) size 800x600 [bgcolor=#FF0000]
        RenderText {#text} at (0,0) size 4x19
          text run at (0,0) width 4: " "