layer at (0,0) size 800x600
  RenderView at (0,0) size 800x600
layer at (0,0) size 800x124
  RenderBlock {HTML} at (0,0) size 800x124
    RenderBody {BODY} at (8,16) size 784x92
      RenderBlock {P} at (0,0) size 784x20
        RenderMathMLMath {math} at (0,9) size 10x11
          RenderMathMLRow {mstyle} at (0,0) size 10x11
            RenderMathMLUnderOver {mover} at (0,0) size 10x11
              RenderMathMLOperator {mo} at (0,1) size 10x10
                RenderBlock (anonymous) at (0,0) size 1x2
                  RenderText {#text} at (0,-4) size 1x10
                    text run at (0,-4) width 1: "\x{219C}"
              RenderMathMLSpace {mspace} at (1,0) size 8x1
        RenderText {#text} at (0,0) size 0x0
      RenderBlock {P} at (0,36) size 784x20
        RenderMathMLMath {math} at (0,9) size 20x11
          RenderMathMLRow {mstyle} at (0,0) size 20x11
            RenderMathMLUnderOver {mover} at (0,0) size 20x11
              RenderMathMLOperator {mo} at (0,1) size 20x10
                RenderBlock (anonymous) at (0,0) size 1x2
                  RenderText {#text} at (0,-4) size 1x10
                    text run at (0,-4) width 1: "\x{219C}"
              RenderMathMLSpace {mspace} at (2,0) size 16x1
        RenderText {#text} at (0,0) size 0x0
      RenderBlock {P} at (0,72) size 784x20
        RenderMathMLMath {math} at (0,9) size 150x11
          RenderMathMLRow {mstyle} at (0,0) size 150x11
            RenderMathMLUnderOver {mover} at (0,0) size 150x11
              RenderMathMLOperator {mo} at (0,1) size 150x10
                RenderBlock (anonymous) at (0,0) size 1x2
                  RenderText {#text} at (0,-4) size 1x10
                    text run at (0,-4) width 1: "\x{219C}"
              RenderMathMLSpace {mspace} at (0,0) size 150x1
        RenderText {#text} at (0,0) size 0x0