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layer at (0,0) size 800x600
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            text run at (14,14) width 381: "We hold these truths to be self-evident,"
        RenderText {TEXT} at (0,0) size 0x0
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          text run at (14,14) width 318: "that all men are created equal, ..."
selection is CARET:
start:      position 9 of child 1 {TEXT} of child 4 {DIV} of root {BODY}
upstream:   position 9 of child 1 {TEXT} of child 4 {DIV} of root {BODY}
downstream: position 9 of child 1 {TEXT} of child 4 {DIV} of root {BODY}
