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 (8,8) size 784x584
      RenderBlock {H4} at (0,0) size 784x20
        RenderText {#text} at (0,0) size 338x20
          text run at (0,0) width 338: "Deleting into a nested block (was Radar 4056100)"
      RenderBlock {DIV} at (0,38) size 400x57
        RenderText {#text} at (0,0) size 371x57
          text run at (0,0) width 346: "The bug's symptom was that the visual result were two"
          text run at (0,19) width 371: "instances of the word \"three\", because the original was not"
          text run at (0,38) width 181: "erased. Resize cleared it up."
      RenderBlock {HR} at (0,102) size 784x2 [border: (1px inset #000000)]
      RenderBlock {DIV} at (0,111) size 784x100
        RenderBlock {DIV} at (0,0) size 784x19
          RenderText {#text} at (0,0) size 33x19
            text run at (0,0) width 33: "three"
caret: position 0 of child 0 {#text} of child 1 {DIV} of child 7 {DIV} of child 1 {BODY} of child 0 {HTML} of document
