Viewport <#document> at [0,0] [0+0+0 800 0+0+0] [0+0+0 600 0+0+0] [BFC] children: not-inline
  BlockContainer <html> at [0,0] [0+0+0 800 0+0+0] [0+0+0 16 0+0+0] [BFC] children: not-inline
    BlockContainer <body> at [8,8] [8+0+0 784 0+0+8] [8+0+0 0 0+0+8] children: inline
      TextNode <#text> (not painted)
  BlockContainer <(anonymous)> at [0,0] positioned [0+0+0 800 0+0+0] [0+0+0 600 0+0+0] [BFC] children: not-inline
  BlockContainer <dialog#d> at [297,290] positioned [278+3+16 206 16+3+278] [271+3+16 20 16+3+271] [BFC] children: inline
    frag 0 from TextInputBox start: 0, length: 0, rect: [300,292 200x16] baseline: 18
    TextInputBox <input> at [300,292] inline-block [0+1+2 200 2+1+0] [0+1+1 16 1+1+0] [BFC] children: not-inline
      Box <div> at [300,292] flex-container(row) [0+0+0 200 0+0+0] [0+0+0 16 0+0+0] [FFC] children: not-inline
        BlockContainer <div> at [300,292] flex-item [0+0+0 200 0+0+0] [0+0+0 16 0+0+0] [BFC] children: inline
          frag 0 from TextNode start: 0, length: 0, rect: [300,292 0x16] baseline: 12.796875
          TextNode <#text> (not painted)

ViewportPaintable (Viewport<#document>) [0,0 800x600]
  PaintableWithLines (BlockContainer<HTML>) [0,0 800x16]
    PaintableWithLines (BlockContainer<BODY>) [8,8 784x0]
  PaintableWithLines (BlockContainer(anonymous)) [0,0 800x600]
  PaintableWithLines (BlockContainer<DIALOG>#d) [278,271 244x58]
    PaintableWithLines (TextInputBox<INPUT>) [297,290 206x20]
      Paintable (Box<DIV>) [300,292 200x16]
        PaintableWithLines (BlockContainer<DIV>) [300,292 200x16]

SC for Viewport<#document> [0,0 800x600] (z-index: auto)
 SC for BlockContainer<HTML> [0,0 800x16] (z-index: auto)
 SC for BlockContainer(anonymous) [0,0 800x600] (z-index: auto)
 SC for BlockContainer<DIALOG>#d [297,290 206x20] (z-index: auto)
