| OLD | NEW |
| 1 layer at (0,0) size 800x600 | 1 layer at (0,0) size 800x600 |
| 2 LayoutView at (0,0) size 800x600 | 2 LayoutView at (0,0) size 800x600 |
| 3 layer at (0,0) size 800x600 | 3 layer at (0,0) size 800x600 |
| 4 LayoutBlockFlow {HTML} at (0,0) size 800x600 | 4 LayoutBlockFlow {HTML} at (0,0) size 800x600 |
| 5 LayoutBlockFlow {BODY} at (0,0) size 800x600 | 5 LayoutBlockFlow {BODY} at (0,0) size 800x600 |
| 6 LayoutBlockFlow {DETAILS} at (0,0) size 800x18 | 6 LayoutBlockFlow {DETAILS} at (0,0) size 800x36 |
| 7 LayoutBlockFlow {SUMMARY} at (0,0) size 800x18 | 7 LayoutBlockFlow {SUMMARY} at (0,0) size 800x18 |
| 8 LayoutDetailsMarker {DIV} at (0,3) size 10.55x10.55: down | 8 LayoutDetailsMarker {DIV} at (0,3) size 10.55x10.55: down |
| 9 LayoutText {#text} at (16,0) size 73x18 | 9 LayoutText {#text} at (16,0) size 73x18 |
| 10 text run at (16,0) width 73: "summary 1" | 10 text run at (16,0) width 73: "summary 1" |
| 11 LayoutBlockFlow {DIV} at (0,18) size 800x0 | 11 LayoutBlockFlow {DIV} at (0,18) size 800x18 |
| 12 caret: position 0 of child 0 {DIV} of {#document-fragment} of child 1 {SUMMARY}
of child 1 {DETAILS} of body | 12 LayoutBlockFlow {SUMMARY} at (0,0) size 800x18 |
| 13 LayoutText {#text} at (0,0) size 72x18 |
| 14 text run at (0,0) width 72: "summary 2" |
| OLD | NEW |