layer at (0,0) size 800x600
  RenderCanvas at (0,0) size 800x600
layer at (0,0) size 800x73
  RenderBlock {HTML} at (0,0) size 800x73
    RenderBody {BODY} at (8,8) size 784x51
      RenderBlock {P} at (0,0) size 784x51
        RenderText {TEXT} at (0,0) size 776x51
          text run at (0,0) width 615: "In this test, you should see three blocks that are centered horizontally within a black box. "
          text run at (615,0) width 161: "They should be stacked"
          text run at (0,17) width 390: "vertically with the green box in between two olive boxes. "
          text run at (390,17) width 338: "The olive boxes and the green box should be 100"
          text run at (728,17) width 41: "x100,"
          text run at (0,34) width 499: "and there should be 50 pixels of padding on either side of the box stack."
layer at (8,73) size 240x340
  RenderBlock (positioned) {DIV} at (8,73) size 240x340
    RenderBlock {DIV} at (70,70) size 100x0
layer at (78,193) size 100x100
  RenderBlock (positioned) {SPAN} at (70,120) size 100x100 [bgcolor=#008000]
layer at (78,93) size 100x100
  RenderBlock (positioned) {DIV} at (70,20) size 100x100 [bgcolor=#808000]
layer at (78,293) size 100x100
  RenderBlock (positioned) {DIV} at (70,220) size 100x100 [bgcolor=#808000]
