layer at (0,0) size 800x600 RenderCanvas at (0,0) size 800x600 layer at (0,0) size 800x50 RenderBlock {HTML} at (0,0) size 800x50 [bgcolor=#00FF00] RenderBody {BODY} at (8,16) size 784x18 RenderBlock {P} at (0,0) size 784x18 RenderText {TEXT} at (0,0) size 314x18 text run at (0,0) width 314: "The background of the document should be green"