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 32 0+0+0] [BFC] children: not-inline
    BlockContainer <body> at [0,0] [0+0+0 800 0+0+0] [0+0+0 32 0+0+0] children: not-inline
      Box <div.row> at [0,0] flex-container(row) [0+0+0 800 0+0+0] [0+0+0 32 0+0+0] [FFC] children: not-inline
        BlockContainer <(anonymous)> (not painted) [BFC] children: inline
          TextNode <#text> (not painted)
        BlockContainer <div.item> at [0,0] flex-item [0+0+0 164.9375 0+0+0] [0+0+0 32 0+0+0] [BFC] children: inline
          frag 0 from Box start: 0, length: 0, rect: [13,1 48.203125x30] baseline: 20.203125
          frag 1 from TextNode start: 0, length: 14, rect: [74.203125,8.5 90.734375x14] baseline: 11.203125
              " trailing text"
          Box <span.button> at [13,1] [0+1+12 48.203125 12+1+0] [0+1+0 30 0+1+0] [GFC] children: not-inline
            BlockContainer <(anonymous)> at [13,5.5] [0+0+0 48.203125 0+0+0] [0+0+0 21 0+0+0] [BFC] children: inline
              frag 0 from TextNode start: 0, length: 7, rect: [13,9 48.203125x14] baseline: 11.203125
                  "Filters"
              TextNode <#text> (not painted)
          TextNode <#text> (not painted)
        BlockContainer <(anonymous)> (not painted) [BFC] children: inline
          TextNode <#text> (not painted)
      BlockContainer <(anonymous)> at [0,32] [0+0+0 800 0+0+0] [0+0+0 0 0+0+0] children: inline
        TextNode <#text> (not painted)

ViewportPaintable (Viewport<#document>) [0,0 800x600]
  PaintableWithLines (BlockContainer<HTML>) [0,0 800x32]
    PaintableWithLines (BlockContainer<BODY>) [0,0 800x32]
      Paintable (Box<DIV>.row) [0,0 800x32]
        PaintableWithLines (BlockContainer<DIV>.item) [0,0 164.9375x32]
          Paintable (Box<SPAN>.button) [0,0 74.203125x32]
            PaintableWithLines (BlockContainer(anonymous)) [13,5.5 48.203125x21]
      PaintableWithLines (BlockContainer(anonymous)) [0,32 800x0]

SC for Viewport<#document> [0,0 800x600] (z-index: auto)
 SC for BlockContainer<HTML> [0,0 800x32] (z-index: auto)
