| layer at (0,0) size 800x600 | |
| RenderView at (0,0) size 800x600 | |
| layer at (0,0) size 800x50 | |
| RenderBlock {test} at (0,0) size 800x50 | |
| RenderBlock {p} at (0,16) size 800x18 | |
| RenderText {#text} at (0,0) size 403x18 | |
| text run at (0,0) width 403: "The first line of this paragraph should have a green background." |