layer at (0,0) size 800x600
  RenderView at (0,0) size 800x600
layer at (0,0) size 800x52
  RenderBlock {html} at (0,0) size 800x52
    RenderBody {body} at (8,16) size 784x20
      RenderBlock {p} at (0,0) size 784x20
        RenderText {#text} at (0,0) size 512x19
          text run at (0,0) width 512: "Try selecting some text in this document. It should be have a green background."
