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 {DETAILS} at (0,0) size 800x36
        RenderBlock {SUMMARY} at (0,0) size 800x18
          RenderDetailsMarker {DIV} at (0,3) size 11x11: down
          RenderText {#text} at (16,0) size 59x18
            text run at (16,0) width 59: "summary"
        RenderBlock {SUMMARY} at (0,18) size 800x18
          RenderText {#text} at (0,0) size 39x18
            text run at (0,0) width 39: "new 1"
caret: position 0 of child 0 {DIV} of {#document-fragment} of child 1 {SUMMARY} of child 1 {DETAILS} of body