layer at (0,0) size 800x600
  RenderView at (0,0) size 800x600
layer at (0,0) size 800x180
  RenderBlock {html} at (0,0) size 800x180
    RenderBody {body} at (8,16) size 784x148
      RenderBlock {p} at (0,0) size 784x66
        RenderText {#text} at (0,26) size 49x18
          text run at (0,26) width 49: "simple: "
        RenderBlock {math} at (49,0) size 62x66
          RenderTable {mtable} at (1,0) size 60x66
            RenderTableSection (anonymous) at (0,0) size 60x66
              RenderTableRow {mtr} at (0,0) size 60x22
                RenderTableCell {mtd} at (0,0) size 20x22 [r=0 c=0 rs=1 cs=1]
                  RenderBlock {msub} at (0,0) size 20x22
                    RenderBlock {msub} at (0,0) size 8x19
                      RenderInline {mi} at (0,0) size 8x16
                        RenderText {#text} at (0,3) size 8x16
                          text run at (0,3) width 8: "a"
                    RenderInline {mn} at (0,0) size 12x12
                      RenderText {#text} at (8,10) size 12x12
                        text run at (8,10) width 12: "11"
                RenderTableCell {mtd} at (20,0) size 20x22 [r=0 c=1 rs=1 cs=1]
                  RenderBlock {msub} at (0,0) size 20x22
                    RenderBlock {msub} at (0,0) size 8x19
                      RenderInline {mi} at (0,0) size 8x16
                        RenderText {#text} at (0,3) size 8x16
                          text run at (0,3) width 8: "a"
                    RenderInline {mn} at (0,0) size 12x12
                      RenderText {#text} at (8,10) size 12x12
                        text run at (8,10) width 12: "12"
                RenderTableCell {mtd} at (40,0) size 20x22 [r=0 c=2 rs=1 cs=1]
                  RenderBlock {msub} at (0,0) size 20x22
                    RenderBlock {msub} at (0,0) size 8x19
                      RenderInline {mi} at (0,0) size 8x16
                        RenderText {#text} at (0,3) size 8x16
                          text run at (0,3) width 8: "a"
                    RenderInline {mn} at (0,0) size 12x12
                      RenderText {#text} at (8,10) size 12x12
                        text run at (8,10) width 12: "13"
              RenderTableRow {mtr} at (0,22) size 60x22
                RenderTableCell {mtd} at (0,22) size 20x22 [r=1 c=0 rs=1 cs=1]
                  RenderBlock {msub} at (0,0) size 20x22
                    RenderBlock {msub} at (0,0) size 8x19
                      RenderInline {mi} at (0,0) size 8x16
                        RenderText {#text} at (0,3) size 8x16
                          text run at (0,3) width 8: "b"
                    RenderInline {mn} at (0,0) size 12x12
                      RenderText {#text} at (8,10) size 12x12
                        text run at (8,10) width 12: "21"
                RenderTableCell {mtd} at (20,22) size 20x22 [r=1 c=1 rs=1 cs=1]
                  RenderBlock {msub} at (0,0) size 20x22
                    RenderBlock {msub} at (0,0) size 8x19
                      RenderInline {mi} at (0,0) size 8x16
                        RenderText {#text} at (0,3) size 8x16
                          text run at (0,3) width 8: "b"
                    RenderInline {mn} at (0,0) size 12x12
                      RenderText {#text} at (8,10) size 12x12
                        text run at (8,10) width 12: "22"
                RenderTableCell {mtd} at (40,22) size 20x22 [r=1 c=2 rs=1 cs=1]
                  RenderBlock {msub} at (0,0) size 20x22
                    RenderBlock {msub} at (0,0) size 8x19
                      RenderInline {mi} at (0,0) size 8x16
                        RenderText {#text} at (0,3) size 8x16
                          text run at (0,3) width 8: "b"
                    RenderInline {mn} at (0,0) size 12x12
                      RenderText {#text} at (8,10) size 12x12
                        text run at (8,10) width 12: "23"
              RenderTableRow {mtr} at (0,44) size 60x22
                RenderTableCell {mtd} at (0,44) size 20x22 [r=2 c=0 rs=1 cs=1]
                  RenderBlock {msub} at (0,0) size 19x22
                    RenderBlock {msub} at (0,0) size 7x19
                      RenderInline {mi} at (0,0) size 7x16
                        RenderText {#text} at (0,3) size 7x16
                          text run at (0,3) width 7: "c"
                    RenderInline {mn} at (0,0) size 12x12
                      RenderText {#text} at (7,10) size 12x12
                        text run at (7,10) width 12: "31"
                RenderTableCell {mtd} at (20,44) size 20x22 [r=2 c=1 rs=1 cs=1]
                  RenderBlock {msub} at (0,0) size 19x22
                    RenderBlock {msub} at (0,0) size 7x19
                      RenderInline {mi} at (0,0) size 7x16
                        RenderText {#text} at (0,3) size 7x16
                          text run at (0,3) width 7: "c"
                    RenderInline {mn} at (0,0) size 12x12
                      RenderText {#text} at (7,10) size 12x12
                        text run at (7,10) width 12: "32"
                RenderTableCell {mtd} at (40,44) size 20x22 [r=2 c=2 rs=1 cs=1]
                  RenderBlock {msub} at (0,0) size 19x22
                    RenderBlock {msub} at (0,0) size 7x19
                      RenderInline {mi} at (0,0) size 7x16
                        RenderText {#text} at (0,3) size 7x16
                          text run at (0,3) width 7: "c"
                    RenderInline {mn} at (0,0) size 12x12
                      RenderText {#text} at (7,10) size 12x12
                        text run at (7,10) width 12: "33"
        RenderText {#text} at (0,0) size 0x0
      RenderBlock {p} at (0,82) size 784x66
        RenderText {#text} at (0,26) size 308x18
          text run at (0,26) width 308: "left, default (center) and right column alignment: "
        RenderBlock {math} at (308,0) size 198x66
          RenderTable {mtable} at (1,0) size 60x66
            RenderTableSection (anonymous) at (0,0) size 60x66
              RenderTableRow {mtr} at (0,0) size 60x22
                RenderTableCell {mtd} at (0,0) size 20x22 [r=0 c=0 rs=1 cs=1]
                  RenderBlock {msub} at (0,0) size 14x22
                    RenderBlock {msub} at (0,0) size 8x19
                      RenderInline {mi} at (0,0) size 8x16
                        RenderText {#text} at (0,3) size 8x16
                          text run at (0,3) width 8: "a"
                    RenderInline {mn} at (0,0) size 6x12
                      RenderText {#text} at (8,10) size 6x12
                        text run at (8,10) width 6: "1"
                RenderTableCell {mtd} at (20,0) size 20x22 [r=0 c=1 rs=1 cs=1]
                  RenderBlock {msub} at (0,0) size 20x22
                    RenderBlock {msub} at (0,0) size 8x19
                      RenderInline {mi} at (0,0) size 8x16
                        RenderText {#text} at (0,3) size 8x16
                          text run at (0,3) width 8: "a"
                    RenderInline {mn} at (0,0) size 12x12
                      RenderText {#text} at (8,10) size 12x12
                        text run at (8,10) width 12: "12"
                RenderTableCell {mtd} at (40,0) size 20x22 [r=0 c=2 rs=1 cs=1]
                  RenderBlock {msub} at (0,0) size 20x22
                    RenderBlock {msub} at (0,0) size 8x19
                      RenderInline {mi} at (0,0) size 8x16
                        RenderText {#text} at (0,3) size 8x16
                          text run at (0,3) width 8: "a"
                    RenderInline {mn} at (0,0) size 12x12
                      RenderText {#text} at (8,10) size 12x12
                        text run at (8,10) width 12: "13"
              RenderTableRow {mtr} at (0,22) size 60x22
                RenderTableCell {mtd} at (0,22) size 20x22 [r=1 c=0 rs=1 cs=1]
                  RenderBlock {msub} at (0,0) size 20x22
                    RenderBlock {msub} at (0,0) size 8x19
                      RenderInline {mi} at (0,0) size 8x16
                        RenderText {#text} at (0,3) size 8x16
                          text run at (0,3) width 8: "b"
                    RenderInline {mn} at (0,0) size 12x12
                      RenderText {#text} at (8,10) size 12x12
                        text run at (8,10) width 12: "21"
                RenderTableCell {mtd} at (20,22) size 20x22 [r=1 c=1 rs=1 cs=1]
                  RenderBlock {msub} at (0,0) size 14x22
                    RenderBlock {msub} at (0,0) size 8x19
                      RenderInline {mi} at (0,0) size 8x16
                        RenderText {#text} at (0,3) size 8x16
                          text run at (0,3) width 8: "b"
                    RenderInline {mn} at (0,0) size 6x12
                      RenderText {#text} at (8,10) size 6x12
                        text run at (8,10) width 6: "2"
                RenderTableCell {mtd} at (40,22) size 20x22 [r=1 c=2 rs=1 cs=1]
                  RenderBlock {msub} at (0,0) size 20x22
                    RenderBlock {msub} at (0,0) size 8x19
                      RenderInline {mi} at (0,0) size 8x16
                        RenderText {#text} at (0,3) size 8x16
                          text run at (0,3) width 8: "b"
                    RenderInline {mn} at (0,0) size 12x12
                      RenderText {#text} at (8,10) size 12x12
                        text run at (8,10) width 12: "23"
              RenderTableRow {mtr} at (0,44) size 60x22
                RenderTableCell {mtd} at (0,44) size 20x22 [r=2 c=0 rs=1 cs=1]
                  RenderBlock {msub} at (0,0) size 19x22
                    RenderBlock {msub} at (0,0) size 7x19
                      RenderInline {mi} at (0,0) size 7x16
                        RenderText {#text} at (0,3) size 7x16
                          text run at (0,3) width 7: "c"
                    RenderInline {mn} at (0,0) size 12x12
                      RenderText {#text} at (7,10) size 12x12
                        text run at (7,10) width 12: "31"
                RenderTableCell {mtd} at (20,44) size 20x22 [r=2 c=1 rs=1 cs=1]
                  RenderBlock {msub} at (0,0) size 19x22
                    RenderBlock {msub} at (0,0) size 7x19
                      RenderInline {mi} at (0,0) size 7x16
                        RenderText {#text} at (0,3) size 7x16
                          text run at (0,3) width 7: "c"
                    RenderInline {mn} at (0,0) size 12x12
                      RenderText {#text} at (7,10) size 12x12
                        text run at (7,10) width 12: "32"
                RenderTableCell {mtd} at (40,44) size 20x22 [r=2 c=2 rs=1 cs=1]
                  RenderBlock {msub} at (0,0) size 13x22
                    RenderBlock {msub} at (0,0) size 7x19
                      RenderInline {mi} at (0,0) size 7x16
                        RenderText {#text} at (0,3) size 7x16
                          text run at (0,3) width 7: "c"
                    RenderInline {mn} at (0,0) size 6x12
                      RenderText {#text} at (7,10) size 6x12
                        text run at (7,10) width 6: "3"
          RenderInline {mtext} at (0,0) size 8x16
            RenderText {#text} at (61,29) size 8x16
              text run at (61,29) width 8: ", "
          RenderTable {mtable} at (69,0) size 60x66
            RenderTableSection (anonymous) at (0,0) size 60x66
              RenderTableRow {mtr} at (0,0) size 60x22
                RenderTableCell {mtd} at (0,0) size 20x22 [r=0 c=0 rs=1 cs=1]
                  RenderBlock {msub} at (3,0) size 14x22
                    RenderBlock {msub} at (0,0) size 8x19
                      RenderInline {mi} at (0,0) size 8x16
                        RenderText {#text} at (0,3) size 8x16
                          text run at (0,3) width 8: "a"
                    RenderInline {mn} at (0,0) size 6x12
                      RenderText {#text} at (8,10) size 6x12
                        text run at (8,10) width 6: "1"
                RenderTableCell {mtd} at (20,0) size 20x22 [r=0 c=1 rs=1 cs=1]
                  RenderBlock {msub} at (0,0) size 20x22
                    RenderBlock {msub} at (0,0) size 8x19
                      RenderInline {mi} at (0,0) size 8x16
                        RenderText {#text} at (0,3) size 8x16
                          text run at (0,3) width 8: "a"
                    RenderInline {mn} at (0,0) size 12x12
                      RenderText {#text} at (8,10) size 12x12
                        text run at (8,10) width 12: "12"
                RenderTableCell {mtd} at (40,0) size 20x22 [r=0 c=2 rs=1 cs=1]
                  RenderBlock {msub} at (0,0) size 20x22
                    RenderBlock {msub} at (0,0) size 8x19
                      RenderInline {mi} at (0,0) size 8x16
                        RenderText {#text} at (0,3) size 8x16
                          text run at (0,3) width 8: "a"
                    RenderInline {mn} at (0,0) size 12x12
                      RenderText {#text} at (8,10) size 12x12
                        text run at (8,10) width 12: "13"
              RenderTableRow {mtr} at (0,22) size 60x22
                RenderTableCell {mtd} at (0,22) size 20x22 [r=1 c=0 rs=1 cs=1]
                  RenderBlock {msub} at (0,0) size 20x22
                    RenderBlock {msub} at (0,0) size 8x19
                      RenderInline {mi} at (0,0) size 8x16
                        RenderText {#text} at (0,3) size 8x16
                          text run at (0,3) width 8: "b"
                    RenderInline {mn} at (0,0) size 12x12
                      RenderText {#text} at (8,10) size 12x12
                        text run at (8,10) width 12: "21"
                RenderTableCell {mtd} at (20,22) size 20x22 [r=1 c=1 rs=1 cs=1]
                  RenderBlock {msub} at (3,0) size 14x22
                    RenderBlock {msub} at (0,0) size 8x19
                      RenderInline {mi} at (0,0) size 8x16
                        RenderText {#text} at (0,3) size 8x16
                          text run at (0,3) width 8: "b"
                    RenderInline {mn} at (0,0) size 6x12
                      RenderText {#text} at (8,10) size 6x12
                        text run at (8,10) width 6: "2"
                RenderTableCell {mtd} at (40,22) size 20x22 [r=1 c=2 rs=1 cs=1]
                  RenderBlock {msub} at (0,0) size 20x22
                    RenderBlock {msub} at (0,0) size 8x19
                      RenderInline {mi} at (0,0) size 8x16
                        RenderText {#text} at (0,3) size 8x16
                          text run at (0,3) width 8: "b"
                    RenderInline {mn} at (0,0) size 12x12
                      RenderText {#text} at (8,10) size 12x12
                        text run at (8,10) width 12: "23"
              RenderTableRow {mtr} at (0,44) size 60x22
                RenderTableCell {mtd} at (0,44) size 20x22 [r=2 c=0 rs=1 cs=1]
                  RenderBlock {msub} at (0,0) size 19x22
                    RenderBlock {msub} at (0,0) size 7x19
                      RenderInline {mi} at (0,0) size 7x16
                        RenderText {#text} at (0,3) size 7x16
                          text run at (0,3) width 7: "c"
                    RenderInline {mn} at (0,0) size 12x12
                      RenderText {#text} at (7,10) size 12x12
                        text run at (7,10) width 12: "31"
                RenderTableCell {mtd} at (20,44) size 20x22 [r=2 c=1 rs=1 cs=1]
                  RenderBlock {msub} at (0,0) size 19x22
                    RenderBlock {msub} at (0,0) size 7x19
                      RenderInline {mi} at (0,0) size 7x16
                        RenderText {#text} at (0,3) size 7x16
                          text run at (0,3) width 7: "c"
                    RenderInline {mn} at (0,0) size 12x12
                      RenderText {#text} at (7,10) size 12x12
                        text run at (7,10) width 12: "32"
                RenderTableCell {mtd} at (40,44) size 20x22 [r=2 c=2 rs=1 cs=1]
                  RenderBlock {msub} at (3,0) size 13x22
                    RenderBlock {msub} at (0,0) size 7x19
                      RenderInline {mi} at (0,0) size 7x16
                        RenderText {#text} at (0,3) size 7x16
                          text run at (0,3) width 7: "c"
                    RenderInline {mn} at (0,0) size 6x12
                      RenderText {#text} at (7,10) size 6x12
                        text run at (7,10) width 6: "3"
          RenderInline {mtext} at (0,0) size 8x16
            RenderText {#text} at (129,29) size 8x16
              text run at (129,29) width 8: ", "
          RenderTable {mtable} at (137,0) size 60x66
            RenderTableSection (anonymous) at (0,0) size 60x66
              RenderTableRow {mtr} at (0,0) size 60x22
                RenderTableCell {mtd} at (0,0) size 20x22 [r=0 c=0 rs=1 cs=1]
                  RenderBlock {msub} at (6,0) size 14x22
                    RenderBlock {msub} at (0,0) size 8x19
                      RenderInline {mi} at (0,0) size 8x16
                        RenderText {#text} at (0,3) size 8x16
                          text run at (0,3) width 8: "a"
                    RenderInline {mn} at (0,0) size 6x12
                      RenderText {#text} at (8,10) size 6x12
                        text run at (8,10) width 6: "1"
                RenderTableCell {mtd} at (20,0) size 20x22 [r=0 c=1 rs=1 cs=1]
                  RenderBlock {msub} at (0,0) size 20x22
                    RenderBlock {msub} at (0,0) size 8x19
                      RenderInline {mi} at (0,0) size 8x16
                        RenderText {#text} at (0,3) size 8x16
                          text run at (0,3) width 8: "a"
                    RenderInline {mn} at (0,0) size 12x12
                      RenderText {#text} at (8,10) size 12x12
                        text run at (8,10) width 12: "12"
                RenderTableCell {mtd} at (40,0) size 20x22 [r=0 c=2 rs=1 cs=1]
                  RenderBlock {msub} at (0,0) size 20x22
                    RenderBlock {msub} at (0,0) size 8x19
                      RenderInline {mi} at (0,0) size 8x16
                        RenderText {#text} at (0,3) size 8x16
                          text run at (0,3) width 8: "a"
                    RenderInline {mn} at (0,0) size 12x12
                      RenderText {#text} at (8,10) size 12x12
                        text run at (8,10) width 12: "13"
              RenderTableRow {mtr} at (0,22) size 60x22
                RenderTableCell {mtd} at (0,22) size 20x22 [r=1 c=0 rs=1 cs=1]
                  RenderBlock {msub} at (0,0) size 20x22
                    RenderBlock {msub} at (0,0) size 8x19
                      RenderInline {mi} at (0,0) size 8x16
                        RenderText {#text} at (0,3) size 8x16
                          text run at (0,3) width 8: "b"
                    RenderInline {mn} at (0,0) size 12x12
                      RenderText {#text} at (8,10) size 12x12
                        text run at (8,10) width 12: "21"
                RenderTableCell {mtd} at (20,22) size 20x22 [r=1 c=1 rs=1 cs=1]
                  RenderBlock {msub} at (6,0) size 14x22
                    RenderBlock {msub} at (0,0) size 8x19
                      RenderInline {mi} at (0,0) size 8x16
                        RenderText {#text} at (0,3) size 8x16
                          text run at (0,3) width 8: "b"
                    RenderInline {mn} at (0,0) size 6x12
                      RenderText {#text} at (8,10) size 6x12
                        text run at (8,10) width 6: "2"
                RenderTableCell {mtd} at (40,22) size 20x22 [r=1 c=2 rs=1 cs=1]
                  RenderBlock {msub} at (0,0) size 20x22
                    RenderBlock {msub} at (0,0) size 8x19
                      RenderInline {mi} at (0,0) size 8x16
                        RenderText {#text} at (0,3) size 8x16
                          text run at (0,3) width 8: "b"
                    RenderInline {mn} at (0,0) size 12x12
                      RenderText {#text} at (8,10) size 12x12
                        text run at (8,10) width 12: "23"
              RenderTableRow {mtr} at (0,44) size 60x22
                RenderTableCell {mtd} at (0,44) size 20x22 [r=2 c=0 rs=1 cs=1]
                  RenderBlock {msub} at (1,0) size 19x22
                    RenderBlock {msub} at (0,0) size 7x19
                      RenderInline {mi} at (0,0) size 7x16
                        RenderText {#text} at (0,3) size 7x16
                          text run at (0,3) width 7: "c"
                    RenderInline {mn} at (0,0) size 12x12
                      RenderText {#text} at (7,10) size 12x12
                        text run at (7,10) width 12: "31"
                RenderTableCell {mtd} at (20,44) size 20x22 [r=2 c=1 rs=1 cs=1]
                  RenderBlock {msub} at (1,0) size 19x22
                    RenderBlock {msub} at (0,0) size 7x19
                      RenderInline {mi} at (0,0) size 7x16
                        RenderText {#text} at (0,3) size 7x16
                          text run at (0,3) width 7: "c"
                    RenderInline {mn} at (0,0) size 12x12
                      RenderText {#text} at (7,10) size 12x12
                        text run at (7,10) width 12: "32"
                RenderTableCell {mtd} at (40,44) size 20x22 [r=2 c=2 rs=1 cs=1]
                  RenderBlock {msub} at (7,0) size 13x22
                    RenderBlock {msub} at (0,0) size 7x19
                      RenderInline {mi} at (0,0) size 7x16
                        RenderText {#text} at (0,3) size 7x16
                          text run at (0,3) width 7: "c"
                    RenderInline {mn} at (0,0) size 6x12
                      RenderText {#text} at (7,10) size 6x12
                        text run at (7,10) width 6: "3"
        RenderText {#text} at (0,0) size 0x0