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 42 0+1+0] [BFC] children: not-inline
BlockContainer
at [10,10] [8+1+0 780 0+1+8] [8+1+0 24 0+1+8] children: not-inline
BlockContainer at [11,11] [0+1+0 778 0+1+0] [0+1+0 22 0+1+0] children: inline
frag 0 from Box start: 0, length: 0, rect: [22,22 0x0] baseline: 22
Box at [22,22] flex-container(row) [0+1+10 0 10+1+0] [0+1+10 0 10+1+0] [FFC] children: not-inline
BlockContainer <(anonymous)> at [22,22] [0+0+0 0 0+0+0] [0+0+0 0 0+0+0] [BFC] children: inline
TextNode <#text> (not painted)
ViewportPaintable (Viewport<#document>) [0,0 800x600]
PaintableWithLines (BlockContainer) [0,0 800x44]
PaintableWithLines (BlockContainer) [9,9 782x26]
PaintableWithLines (BlockContainer.first) [10,10 780x24]
PaintableBox (Box.second) [11,11 22x22]
PaintableWithLines (BlockContainer(anonymous)) [22,22 0x0]
SC for Viewport<#document> [0,0 800x600] [children: 1] (z-index: auto)
SC for BlockContainer [1,1 798x42] [children: 0] (z-index: auto)