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+0 176 0+1+0] [BFC] children: not-inline BlockContainer at [10,10] [8+1+0 780 0+1+8] [8+1+0 158 0+1+8] children: not-inline Box at [11,11] flex-container(column) [0+1+0 200 0+1+578] [0+1+0 156 0+1+0] [FFC] children: not-inline BlockContainer
at [12,12] flex-item [0+1+0 50 0+1+0] [0+1+0 50 0+1+0] [BFC] children: not-inline BlockContainer
at [12,64] flex-item [0+1+0 50 0+1+0] [0+1+0 50 0+1+0] [BFC] children: not-inline BlockContainer
at [12,116] flex-item [0+1+0 50 0+1+0] [0+1+0 50 0+1+0] [BFC] children: not-inline ViewportPaintable (Viewport<#document>) [0,0 800x600] PaintableWithLines (BlockContainer) [0,0 800x178] PaintableWithLines (BlockContainer) [9,9 782x160] PaintableBox (Box
.flexbox) [10,10 202x158] PaintableWithLines (BlockContainer
) [11,11 52x52] PaintableWithLines (BlockContainer
) [11,63 52x52] PaintableWithLines (BlockContainer
) [11,115 52x52] SC for Viewport<#document> [0,0 800x600] [children: 1] (z-index: auto) SC for BlockContainer [1,1 798x176] [children: 0] (z-index: auto)