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A comment on How Google +1 Widgets "Break Out" of their IFRAMEs. Parent comment

Re:How Google +1 Widgets "Break Out" of their IFRAMEs by brunnsbe on Tuesday September 06, 2011 @02:57AM (#2964472)
An iframe also helps in IE6 (can't directly remember if it's also in IE7) to draw overlays over form elements, otherwise they will be on top.
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