layer at (0,0) size 800x600
  LayoutView at (0,0) size 800x600
layer at (0,0) size 800x600
  LayoutBlockFlow {HTML} at (0,0) size 800x600
    LayoutBlockFlow {BODY} at (9.59,9.59) size 780.81x580.81
      LayoutBlockFlow {DIV} at (0,0) size 780.81x22
        LayoutText {#text} at (0,0) size 373x21
          text run at (0,0) width 373: "This test passes if the div below is a green square."
      LayoutBlockFlow {DIV} at (0,22) size 120x120