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 32 0+0+0] [BFC] children: not-inline BlockContainer at [8,8] [8+0+0 784 0+0+8] [8+0+0 16 0+0+8] children: not-inline Box at [8,8] [0+0+0 784 0+0+0] [0+0+0 16 0+0+0] [GFC] children: not-inline BlockContainer
at [8,8] [0+0+0 367 0+0+0] [0+0+0 16 0+0+0] [BFC] children: inline frag 0 from TextNode start: 0, length: 1, rect: [8,8 9.34375x16] baseline: 12.796875 "a" TextNode <#text> (not painted) BlockContainer
at [425,8] [0+0+0 367 0+0+0] [0+0+0 16 0+0+0] [BFC] children: inline frag 0 from TextNode start: 0, length: 1, rect: [425,8 9.46875x16] baseline: 12.796875 "b" TextNode <#text> (not painted) ViewportPaintable (Viewport<#document>) [0,0 800x600] PaintableWithLines (BlockContainer) [0,0 800x32] PaintableWithLines (BlockContainer) [8,8 784x16] Paintable (Box
.grid) [8,8 784x16] PaintableWithLines (BlockContainer
) [8,8 367x16] PaintableWithLines (BlockContainer
) [425,8 367x16] SC for Viewport<#document> [0,0 800x600] (z-index: auto) SC for BlockContainer [0,0 800x32] (z-index: auto)