Viewport <#document> at [0,0] [0+0+0 800 0+0+0] [0+0+0 600 0+0+0] [BFC] children: not-inline
BlockContainer at [1,1] [0+1+0 798 0+1+0] [0+1+0 57 0+1+0] [BFC] children: not-inline
Box
at [10,10] [8+1+0 780 0+1+8] [8+1+0 39 0+1+8] [GFC] children: not-inline
BlockContainer at [55.5,11] [0+1+0 689 0+1+0] [0+1+0 37 0+1+0] [BFC] children: inline
frag 0 from TextNode start: 0, length: 13, rect: [55.5,11 200.40625x37] baseline: 28.09375
"hello friends"
TextNode <#text> (not painted)
ViewportPaintable (Viewport<#document>) [0,0 800x600]
PaintableWithLines (BlockContainer) [0,0 800x59]
PaintableBox (Box) [9,9 782x41]
PaintableWithLines (BlockContainer) [54.5,10 691x39]
TextPaintable (TextNode<#text>)
SC for Viewport<#document> [0,0 800x600] [children: 1] (z-index: auto)
SC for BlockContainer [1,1 798x57] [children: 0] (z-index: auto)