| layer at (0,0) size 800x600 | |
| LayoutView at (0,0) size 800x600 | |
| layer at (0,0) size 800x600 | |
| LayoutBlockFlow {HTML} at (0,0) size 800x600 | |
| LayoutBlockFlow {BODY} at (8,8) size 784x584 | |
| LayoutInline {SPAN} at (0,0) size 252x19 | |
| LayoutText {#text} at (196,0) size 252x19 | |
| text run at (196,0) width 252: "This span has 25% margins on either side." | |
| LayoutText {#text} at (644,0) size 30x19 | |
| text run at (644,0) width 30: "See?" |