layer at (0,0) size 800x600
  RenderView at (0,0) size 800x600
layer at (0,0) size 800x537
  RenderBlock {HTML} at (0,0) size 800x537
    RenderBody {BODY} at (8,8) size 784x521
      RenderBlock (anonymous) at (0,0) size 784x19
        RenderText {#text} at (0,0) size 697x19
          text run at (0,0) width 697: "The two green blocks below should be identical and should each take up half the width of the browser window."
        RenderBlock (floating) {DIV} at (390,19) size 394x502 [bgcolor=#008000] [border: (1px solid #000000)]
        RenderText {#text} at (0,0) size 0x0
layer at (8,27) size 394x502 clip at (9,28) size 392x500
  RenderBlock {DIV} at (0,19) size 394x502 [bgcolor=#008000] [border: (1px solid #000000)]
