layer at (0,0) size 800x600
  RenderCanvas at (0,0) size 800x600
layer at (0,0) size 800x600
  RenderBlock {HTML} at (0,0) size 800x600
    RenderBody {BODY} at (8,8) size 784x584
      RenderBlock {DIV} at (0,0) size 784x18
        RenderText {TEXT} at (0,0) size 191x18
          text run at (0,0) width 191: "this text should show up twice"
      RenderBlock {DIV} at (0,18) size 784x18
        RenderBlock {DIV} at (0,0) size 784x18
          RenderText {TEXT} at (0,0) size 191x18
            text run at (0,0) width 191: "this text should show up twice"
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          text run at (0,0) width 187: "this text should show up once"
