Viewport <#document> at (0,0) content-size 800x600 children: not-inline
  BlockContainer <html> at (0,0) content-size 800x16 [BFC] children: not-inline
    BlockContainer <(anonymous)> at (0,0) content-size 800x0 children: inline
      TextNode <#text>
    BlockContainer <body> at (8,8) content-size 784x0 children: inline
      TextNode <#text>
      BlockContainer <h1> at (76.59375,103.765625) content-size 126x38 positioned [BFC] children: inline
        frag 0 from TextNode start: 0, length: 4, rect: [116.3125,103.765625 46.546875x23] baseline: 17.5
            "Test"
        TextNode <#text>
      TextNode <#text>

ViewportPaintable (Viewport<#document>) [0,0 800x600]
  PaintableWithLines (BlockContainer<HTML>) [0,0 800x16]
    PaintableWithLines (BlockContainer(anonymous)) [0,0 800x0]
    PaintableWithLines (BlockContainer<BODY>) [8,8 784x0]
      PaintableWithLines (BlockContainer<H1>) [75.59375,58.765625 128x128]
        TextPaintable (TextNode<#text>)
