layer at (0,0) size 800x600
  LayoutView at (0,0) size 800x600
layer at (0,0) size 800x600
  LayoutBlockFlow {HTML} at (0,0) size 800x600
    LayoutBlockFlow {BODY} at (0,0) size 800x600
      LayoutSVGRoot {svg} at (0,0) size 300x150
        LayoutSVGForeignObject {foreignObject} at (0,0) size 100x100
          LayoutBlockFlow {DIV} at (0,0) size 100x100 [bgcolor=#008000]
        LayoutSVGForeignObject {foreignObject} at (150,0) size 100x100
          LayoutBlockFlow {DIV} at (0,0) size 100x100 [bgcolor=#008000]
      LayoutText {#text} at (0,0) size 0x0