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
      RenderText {#text} at (0,0) size 15x18
        text run at (0,0) width 15: "A "
      RenderText {#text} at (14,0) size 12x18
        text run at (14,0) width 12: "C"
layer at (23,8) size 10x18
  RenderBlock (positioned) {SPAN} at (22,8) size 12x18
    RenderText {#text} at (0,0) size 11x18
      text run at (0,0) width 11: "B"