| layer at (0,0) size 800x600 |
| RenderView at (0,0) size 800x600 |
| layer at (0,0) size 800x600 |
| RenderBlock {HTML} at (0,0) size 800x600 |
| RenderBody {BODY} at (0,0) size 800x600 |
| RenderBlock {DETAILS} at (0,0) size 800x18 |
| RenderBlock {SUMMARY} at (0,0) size 800x18 |
| RenderDetailsMarker {DIV} at (0,4) size 11x11: right |
| RenderText {#text} at (16,0) size 45x18 |
| text run at (16,0) width 45: "Details" |
| caret: position 0 of child 0 {DIV} of {#document-fragment} of child 0 {SUMMARY} of child 0 {SLOT} of {#document-fragment} of child 1 {DETAILS} of body |