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  RenderView at (0,0) size 800x600
layer at (0,0) size 800x50
  RenderBlock {HTML} at (0,0) size 800x50
    RenderBody {BODY} at (8,16) size 784x18 [color=#000080] [bgcolor=#FFFF00]
      RenderBlock {P} at (0,0) size 784x18
        RenderText {#text} at (0,0) size 243x18
          text run at (0,0) width 243: "The entire viewport should be yellow."