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3 layer at (0,0) size 800x36
4 LayoutBlockFlow {HTML} at (0,0) size 800x36
5 LayoutBlockFlow {BODY} at (8,-2) size 784x40
6 LayoutBlockFlow {P} at (-10,0) size 804x40 [color=#000080]
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9 text run at (0,20) width 278: " This page should have a horizontal scroll bar."