layer at (0,0) size 800x600
  RenderView at (0,0) size 800x600
layer at (0,0) size 800x60
  RenderBlock {HTML} at (0,0) size 800x60
    RenderBody {BODY} at (8,16) size 784x116
      RenderBlock {P} at (0,0) size 784x20
        RenderText {#text} at (0,0) size 351x19
          text run at (0,0) width 351: "This page should have one square green block and no red."
      RenderBlock {DIV} at (0,36) size 80x80 [bgcolor=#FF0000]
      RenderBlock (floating) {DIV} at (0,36) size 80x80 [bgcolor=#008000]
        RenderBlock (anonymous) at (0,0) size 80x0
          RenderInline {SPAN} at (0,0) size 0x0
        RenderBlock (anonymous) at (0,80) size 80x0
          RenderBlock {DIV} at (40,0) size 0x0 [bgcolor=#FF0000]
        RenderBlock (anonymous) at (0,80) size 80x0
          RenderInline {SPAN} at (0,0) size 0x0
          RenderText {#text} at (0,0) size 0x0