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 [0,0] [0+0+0 800 0+0+0] [0+0+0 36 0+0+0] [BFC] children: not-inline BlockContainer at [8,8] [8+0+0 784 0+0+8] [8+0+0 20 0+0+8] children: inline frag 0 from Box start: 0, length: 0, rect: [8,8 23.671875x20] baseline: 16 Box at [8,8] flex-container(row) [0+0+0 23.671875 0+0+0] [0+0+0 20 0+0+0] [FFC] children: not-inline BlockContainer <(anonymous)> (not painted) [BFC] children: inline TextNode <#text> (not painted) BlockContainer at [8,8] flex-item [0+0+0 17.828125 0+0+0] [0+0+0 20 0+0+0] [BFC] children: inline frag 0 from TextNode start: 0, length: 1, rect: [8,8 17.828125x20] baseline: 16 "A" TextNode <#text> (not painted) BlockContainer <(anonymous)> (not painted) [BFC] children: inline TextNode <#text> (not painted) BlockContainer at [25.828125,16] flex-item [0+0+0 5.84375 0+0+0] [0+0+0 10 0+0+0] [BFC] children: inline frag 0 from TextNode start: 0, length: 1, rect: [25.828125,16 5.84375x10] baseline: 8 "B" TextNode <#text> (not painted) BlockContainer <(anonymous)> (not painted) [BFC] children: inline TextNode <#text> (not painted) TextNode <#text> (not painted) ViewportPaintable (Viewport<#document>) [0,0 800x600] PaintableWithLines (BlockContainer) [0,0 800x36] PaintableWithLines (BlockContainer) [8,8 784x20] Paintable (Box

.flex) [8,8 23.671875x20] PaintableWithLines (BlockContainer.tall) [8,8 17.828125x20] PaintableWithLines (BlockContainer.short) [25.828125,16 5.84375x10] SC for Viewport<#document> [0,0 800x600] (z-index: auto) SC for BlockContainer [0,0 800x36] (z-index: auto)