1 layer at (0,0) size 800x600
2 RenderView at (0,0) size 800x600
3 layer at (0,0) size 800x54
4 RenderBlock {HTML} at (0,0) size 800x54
5 RenderBody {BODY} at (8,16) size 784x22
6 RenderBlock {P} at (0,0) size 784x22 [bgcolor=#00FF00]
7 RenderText {#text} at (0,0) size 288x22
8 text run at (0,0) width 288: "This line should have a green background."