layer at (0,0) size 800x600
  RenderView at (0,0) size 800x600
layer at (0,0) size 800x275
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      RenderBlock (anonymous) at (0,102) size 784x157
        RenderIFrame {IFRAME} at (0,0) size 304x154 [border: (2px inset #000000)]
          layer at (0,0) size 300x150
            RenderView at (0,0) size 300x150
          layer at (0,0) size 300x150
            RenderBlock {HTML} at (0,0) size 300x150
              RenderBody {BODY} at (0,0) size 300x150
                RenderImage {IMG} at (0,0) size 76x103
        RenderText {#text} at (0,0) size 0x0
        RenderText {#text} at (0,0) size 0x0
caret: position 1 of child 0 {IMG} of child 1 {DIV} of body