layer at (0,0) size 800x600
  RenderView at (0,0) size 800x600
layer at (0,0) size 800x50
  RenderBlock {HTML} at (0,0) size 800x50
    RenderBody {BODY} at (8,8) size 784x34
      RenderBlock {DIV} at (0,0) size 784x17
        RenderText {#text} at (0,0) size 71x17
          text run at (0,0) width 71: "text before "
        RenderInline {ATTACHMENT} at (0,0) size 0x0
        RenderText {#text} at (71,0) size 55x17
          text run at (71,0) width 55: "text after"
      RenderBlock {DIV} at (0,17) size 784x17
        RenderText {#text} at (0,0) size 161x17
          text run at (0,0) width 161: "Start offset 2 End offset 2"
caret: position 2 of child 0 {#text} of child 1 {DIV} of body