layer at (0,0) size 800x600
  RenderView at (0,0) size 800x600
layer at (0,0) size 800x80
  RenderBlock {html} at (0,0) size 800x80
    RenderBlock {div} at (0,14) size 800x52
      RenderBlock {p} at (0,0) size 800x19 [bgcolor=#008000]
        RenderText {#text} at (0,0) size 270x19
          text run at (0,0) width 270: "This line should have a green background."
      RenderBlock {p} at (0,33) size 800x19 [bgcolor=#0000FF]
        RenderText {#text} at (0,0) size 304x19
          text run at (0,0) width 304: "This line should NOT have a green background."
