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2 LayoutView at (0,0) size 800x600
3 layer at (0,0) size 800x600
4 LayoutBlockFlow {HTML} at (0,0) size 800x600
5 LayoutBlockFlow {BODY} at (8,8) size 784x584
6 LayoutText {#text} at (0,0) size 0x0
7 layer at (8,8) size 373x120 transparent
8 LayoutInline {SPAN} at (0,0) size 373x120 [bgcolor=#808080]
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10 text run at (75,22) width 298: "This content should be masked"
11 LayoutBR {BR} at (372,44) size 1x0
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