| layer at (0,0) size 800x600 | |
| RenderView at (0,0) size 800x600 | |
| layer at (0,0) size 800x0 | |
| RenderBlock {HTML} at (0,0) size 800x0 | |
| layer at (0,0) size 800x20 | |
| RenderBlock (positioned) {HEAD} at (0,0) size 800x20 | |
| layer at (0,0) size 800x20 | |
| RenderBody {BODY} at (0,0) size 800x20 [color=#000080] | |
| RenderBlock {P} at (0,0) size 800x20 | |
| RenderText {#text} at (0,0) size 280x19 | |
| text run at (0,0) width 280: "This line should have a yellow background." |