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 784x584
layer at (0,42) size 800x558 clip at (0,42) size 785x558 scrollY 291 scrollHeight 849
  RenderBlock (positioned) {DIV} at (0,42) size 800x558
layer at (0,-249) size 560x849 backgroundClip at (0,42) size 785x558 clip at (0,42) size 785x558
  RenderBlock (positioned) {DIV} at (0,0) size 560x849
    RenderBlock (anonymous) at (0,0) size 560x18
      RenderText {#text} at (0,0) size 560x17
        text run at (0,0) width 560: "This tests that we can scroll to reveal something in a nested positioned block in overflow."
    RenderBlock {DIV} at (0,18) size 560x800
    RenderBlock (anonymous) at (0,818) size 560x31
      RenderButton {INPUT} at (2,2) size 230x27 [color=#2E3436] [bgcolor=#C0C0C0] [border: (2px outset #C0C0C0)]
        RenderBlock (anonymous) at (8,4) size 214x18
          RenderText at (0,0) size 214x17
            text run at (0,0) width 214: "If you can see this, test has passed"
      RenderText {#text} at (0,0) size 0x0