layer at (0,0) size 800x600
  LayoutView at (0,0) size 800x600
layer at (0,0) size 800x136
  LayoutBlockFlow {HTML} at (0,0) size 800x136
    LayoutBlockFlow {BODY} at (8,8) size 784x120
      LayoutBlockFlow (anonymous) at (0,0) size 784x20
        LayoutInline {DIV} at (0,0) size 528x16 [color=#FFFFFF] [bgcolor=#FF0000]
          LayoutText {#text} at (0,2) size 528x16
            text run at (0,2) width 528: "Ahem_font_required_for_this_test."
        LayoutText {#text} at (0,0) size 0x0
      LayoutBlockFlow {DIV} at (0,20) size 300x100 [bgcolor=#FF0000]
        LayoutBlockFlow {DIV} at (0,0) size 600x200 [color=#008000]
          LayoutText {#text} at (0,0) size 300x100
            text run at (0,0) width 300: "XXX"