layer at (0,0) size 800x1640
  RenderView at (0,0) size 800x600
layer at (0,0) size 800x1640
  RenderBlock {HTML} at (0,0) size 800x1640
    RenderBody {BODY} at (8,8) size 784x1624
      RenderText {#text} at (0,0) size 0x0
layer at (8,8) size 773x1615
  RenderInline {SPAN} at (0,0) size 773x1615 [bgcolor=#800000]
    RenderText {#text} at (0,4) size 773x1615
      text run at (0,4) width 356: "This"
      text run at (0,236) width 589: "content"
      text run at (0,468) width 773: "should be"
      text run at (0,700) width 611: "masked"
      text run at (0,932) width 495: "with a"
      text run at (0,1164) width 300: "soft"
      text run at (0,1396) width 438: "glow."