layer at (0,0) size 793x636
  RenderView at (0,0) size 785x585
layer at (0,0) size 785x636
  RenderBlock {HTML} at (0,0) size 785x636
    RenderBody {BODY} at (8,8) size 769x620
      RenderBlock {DIV} at (0,0) size 769x20
        RenderText {#text} at (0,0) size 655x19
          text run at (0,0) width 655: "This tests that putting an inline element (such as a span) inside of an element doesn't cause an assertion failure."
      RenderBlock {DIV} at (0,20) size 769x600
        RenderFrameSet {FRAMESET} at (0,0) size 785x600