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
      RenderBlock (floating) {DIV} at (0,0) size 200x100 [bgcolor=#00FF00]
layer at (208,8) size 435x152
  RenderBlock {DIV} at (200,0) size 435x152 [border: (10px solid #000000)]
    RenderMultiColumnSet at (10,10) size 415x132
layer at (218,18) size 415x132
  RenderMultiColumnFlowThread at (10,10) size 415x132
    RenderBlock {P} at (0,16) size 415x100
      RenderText {#text} at (0,0) size 415x99
        text run at (0,0) width 415: "This technology preview of our award winning next generation"
        text run at (0,20) width 57: "browser "
        text run at (56,20) width 359: "is a sign of things to come from Mozilla. Powerful yet"
        text run at (0,40) width 122: "easy to use. This "
        text run at (121,40) width 294: "maintenance release provides a few updates"
        text run at (0,60) width 246: "based on user feedback - including "
        text run at (245,60) width 170: "changes to the Extension"
        text run at (0,80) width 206: "System and icon improvements."