Viewport <#document> at [0,0] [0+0+0 800 0+0+0] [0+0+0 600 0+0+0] children: not-inline
  BlockContainer <html> at [1,1] [0+1+0 798 0+1+0] [0+1+0 349 0+1+0] [BFC] children: not-inline
    Box <body.hero> at [2,2] flex-container(column) [0+1+0 600 0+1+196] [0+1+0 347 0+1+0] [FFC] children: not-inline
      BlockContainer <div.header> at [102,3] flex-item [0+1+0 400 0+1+0] [0+1+0 345 0+1+0] [BFC] children: inline
        frag 0 from TextNode start: 0, length: 11, rect: [102,3 340.5x69] baseline: 52.484375
            "This entire"
        frag 1 from TextNode start: 12, length: 11, rect: [102,72 341.25x69] baseline: 52.484375
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        frag 2 from TextNode start: 24, length: 8, rect: [102,141 274.171875x69] baseline: 52.484375
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        frag 3 from TextNode start: 33, length: 6, rect: [102,210 204.09375x69] baseline: 52.484375
            "orange"
        frag 4 from TextNode start: 40, length: 11, rect: [102,279 351.59375x69] baseline: 52.484375
            "background."
        TextNode <#text> (not painted)

ViewportPaintable (Viewport<#document>) [0,0 800x600]
  PaintableWithLines (BlockContainer<HTML>) [0,0 800x351]
    PaintableBox (Box<BODY>.hero) [1,1 602x349]
      PaintableWithLines (BlockContainer<DIV>.header) [101,2 402x347]
        TextPaintable (TextNode<#text>)

SC for Viewport<#document> [0,0 800x600] [children: 1] (z-index: auto)
 SC for BlockContainer<HTML> [1,1 798x349] [children: 0] (z-index: auto)
