layer at (0,0) size 800x600
  RenderView at (0,0) size 800x600
layer at (0,0) size 800x600
  RenderBlock {HTML} at (0,0) size 800x600
    RenderBody {BODY} at (8,8) size 784x564
      RenderBlock {PRE} at (0,0) size 784x72
        RenderText {#text} at (0,2) size 255x68
          text run at (0,2) width 255: "This is a test."
          text run at (255,2) width 0: " "
          text run at (0,38) width 238: "Big font size?"
          text run at (238,38) width 0: " "
