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 72 0+0+0] [BFC] children: not-inline BlockContainer at [8,8] [8+0+0 784 0+0+8] [8+0+0 56 0+0+8] children: not-inline Box at [9,9] flex-container(column) [0+1+0 500 0+1+282] [0+1+0 54 0+1+0] [FFC] children: not-inline BlockContainer <(anonymous)> (not painted) [BFC] children: inline TextNode <#text> (not painted) BlockContainer at [10,10] flex-item [0+1+0 100 0+1+0] [0+1+0 16 0+1+0] [BFC] children: inline frag 0 from TextNode start: 0, length: 1, rect: [10,10 6.34375x16] baseline: 12.796875 "1" TextNode <#text> (not painted) BlockContainer <(anonymous)> (not painted) [BFC] children: inline TextNode <#text> (not painted) BlockContainer at [10,28] flex-item [0+1+0 100 0+1+0] [0+1+0 16 0+1+0] [BFC] children: inline frag 0 from TextNode start: 0, length: 1, rect: [10,28 8.8125x16] baseline: 12.796875 "2" TextNode <#text> (not painted) BlockContainer <(anonymous)> (not painted) [BFC] children: inline TextNode <#text> (not painted) BlockContainer at [10,46] flex-item [0+1+0 100 0+1+0] [0+1+0 16 0+1+0] [BFC] children: inline frag 0 from TextNode start: 0, length: 1, rect: [10,46 9.09375x16] baseline: 12.796875 "3" TextNode <#text> (not painted) BlockContainer <(anonymous)> (not painted) [BFC] children: inline TextNode <#text> (not painted) BlockContainer <(anonymous)> at [8,64] [0+0+0 784 0+0+0] [0+0+0 0 0+0+0] children: inline TextNode <#text> (not painted) ViewportPaintable (Viewport<#document>) [0,0 800x600] PaintableWithLines (BlockContainer) [0,0 800x72] PaintableWithLines (BlockContainer) [8,8 784x56] Paintable (Box

.container) [8,8 502x56] PaintableWithLines (BlockContainer

.box) [9,9 102x18] PaintableWithLines (BlockContainer

.box) [9,27 102x18] PaintableWithLines (BlockContainer

.box) [9,45 102x18] PaintableWithLines (BlockContainer(anonymous)) [8,64 784x0] SC for Viewport<#document> [0,0 800x600] (z-index: auto) SC for BlockContainer [0,0 800x72] (z-index: auto)