layer at (0,0) size 800x600
  RenderCanvas at (0,0) size 800x600
layer at (0,0) size 800x34
  RenderBlock {HTML} at (0,0) size 800x34
    RenderBody {BODY} at (8,8) size 784x18 [color=#FFFFFF] [bgcolor=#008000]
      RenderText {TEXT} at (0,0) size 317x18
        text run at (0,0) width 317: "You should see white text on a green background."