Viewport <#document> at (0,0) content-size 800x600 children: not-inline
  BlockContainer <html> at (0,0) content-size 800x41 [BFC] children: not-inline
    BlockContainer <body> at (8,16) content-size 784x17 children: not-inline
      BlockContainer <(anonymous)> at (8,16) content-size 784x0 children: inline
        TextNode <#text>
      BlockContainer <p> at (8,16) content-size 784x17 children: inline
        frag 0 from TextNode start: 1, length: 15, rect: [8,16 29.21875x17] baseline: 13.296875
            "好啦朋友們"
        TextNode <#text>
      BlockContainer <(anonymous)> at (8,49) content-size 784x0 children: inline
        TextNode <#text>

ViewportPaintable (Viewport<#document>) [0,0 800x600]
  PaintableWithLines (BlockContainer<HTML>) [0,0 800x41] overflow: [0,0 800x49]
    PaintableWithLines (BlockContainer<BODY>) [8,16 784x17] overflow: [8,16 784x33]
      PaintableWithLines (BlockContainer(anonymous)) [8,16 784x0]
      PaintableWithLines (BlockContainer<P>) [8,16 784x17]
        TextPaintable (TextNode<#text>)
      PaintableWithLines (BlockContainer(anonymous)) [8,49 784x0]
