layer at (0,0) size 800x600
  RenderView at (0,0) size 800x600
layer at (0,0) size 800x600
  RenderBlock {HTML} at (0,0) size 800x600
    RenderBody {BODY} at (8,8) size 784x584
      RenderBlock {DIV} at (0,0) size 784x178 [border: (80px solid #FF0000)]
        RenderText {#text} at (80,80) size 208x18
          text run at (80,80) width 208: "This border should be 5em thick."
      RenderBlock {DIV} at (0,178) size 100x36 [bgcolor=#00FF00]
        RenderText {#text} at (0,0) size 98x36
          text run at (0,0) width 98: "This div should"
          text run at (0,18) width 98: "be 100px wide."