layer at (0,0) size 785x686
  RenderView at (0,0) size 785x600
layer at (0,0) size 785x686
  RenderBlock {html} at (0,0) size 785x686
    RenderBody {body} at (8,16) size 769x660
      RenderBlock {p} at (0,0) size 769x18
        RenderText {#text} at (0,0) size 385x17
          text run at (0,0) width 385: "Test passes if the content of the three black boxes is identical."
      RenderBlock {div} at (10,34) size 298x202 [border: (5px solid #000000)]
      RenderBlock {div} at (10,246) size 298x202 [border: (5px solid #000000)]
      RenderBlock {div} at (10,458) size 298x202 [border: (5px solid #000000)]