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RenderCanvas at (0,0) size 800x600
layer at (0,0) size 800x92
RenderBlock {HTML} at (0,0) size 800x92
RenderBody {BODY} at (8,16) size 784x60
RenderBlock {P} at (0,0) size 784x60 [bgcolor=#FFFFFF] [border: (5px solid #00FF00)]
RenderText {TEXT} at (21,21) size 733x18
text run at (21,21) width 443: "This paragraph should have white background and a green thick solid "
text run at (464,21) width 290: "border because it carries both classes t1 and t2"