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 RenderBody {BODY} at (8,16) size 784x18 RenderBlock {P} at (0,0) size 784x18 [bgcolor=#00FF00] RenderText {TEXT} at (0,0) size 268x18 text run at (0,0) width 268: "This line should have a green background."