layer at (0,0) size 800x600
  RenderView at (0,0) size 800x600
layer at (0,0) size 800x68
  RenderBlock {test} at (0,0) size 800x68
    RenderBlock {p} at (0,16) size 800x36 [bgcolor=#00FF00]
      RenderText {#text} at (0,0) size 308x18
        text run at (0,0) width 308: "This paragraph should have a green background"
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      RenderText {#text} at (0,18) size 273x18
        text run at (0,18) width 273: "because its title attribute begins with \"foo\""