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 [0,0] [0+0+0 800 0+0+0] [0+0+0 60 0+0+0] [BFC] children: not-inline
    BlockContainer <body> at [8,8] [8+0+0 784 0+0+8] [8+0+0 44 0+0+8] children: inline
      frag 0 from AudioBox start: 0, length: 0, rect: [8,8 300x40] baseline: 40
      frag 1 from TextNode start: 0, length: 1, rect: [308,34 8x18] baseline: 13.796875
          " "
      frag 2 from AudioBox start: 0, length: 0, rect: [316,48 0x0] baseline: 0
      AudioBox <audio> at [8,8] [0+0+0 300 0+0+0] [0+0+0 40 0+0+0] children: not-inline
      TextNode <#text> (not painted)
      AudioBox <audio> at [316,48] [0+0+0 0 0+0+0] [0+0+0 0 0+0+0] children: not-inline

ViewportPaintable (Viewport<#document>) [0,0 800x600]
  PaintableWithLines (BlockContainer<HTML>) [0,0 800x60]
    PaintableWithLines (BlockContainer<BODY>) [8,8 784x44]
      AudioPaintable (AudioBox<AUDIO>) [8,8 300x40]
      TextPaintable (TextNode<#text>)
      AudioPaintable (AudioBox<AUDIO>) [316,48 0x0]

SC for Viewport<#document> [0,0 800x600] [children: 1] (z-index: auto)
 SC for BlockContainer<HTML> [0,0 800x60] [children: 0] (z-index: auto)
