1 layer at (0,0) size 800x600
2 RenderView at (0,0) size 800x600
3 layer at (0,0) size 800x53
4 RenderBlock {HTML} at (0,0) size 800x53
5 RenderBody {BODY} at (8,16) size 784x21
6 RenderBlock {P} at (0,0) size 784x21
7 RenderText {#text} at (0,0) size 562x21
8 text run at (0,0) width 562: "Try selecting some text in this document. It should be have a green background."