Viewport <#document> at (0,0) content-size 800x600 children: not-inline BlockContainer at (1,1) content-size 798x40 [BFC] children: not-inline BlockContainer at (10,10) content-size 780x22 children: not-inline Box at (11,11) content-size 778x20 [GFC] children: not-inline BlockContainer at (12,12) content-size 516.625x18 [BFC] children: inline frag 0 from TextNode start: 0, length: 1, rect: [12,12 6.34375x18] baseline: 13.796875 "1" TextNode <#text> BlockContainer at (530.625,12) content-size 257.3125x18 [BFC] children: inline frag 0 from TextNode start: 0, length: 1, rect: [530.625,12 8.8125x18] baseline: 13.796875 "2" TextNode <#text> ViewportPaintable (Viewport<#document>) [0,0 800x600] PaintableWithLines (BlockContainer) [0,0 800x42] PaintableWithLines (BlockContainer) [9,9 782x24] PaintableBox (Box

.grid-container) [10,10 780x22] PaintableWithLines (BlockContainer

.a) [11,11 518.625x20] TextPaintable (TextNode<#text>) PaintableWithLines (BlockContainer

.b) [529.625,11 259.3125x20] TextPaintable (TextNode<#text>) SC for Viewport<#document> [0,0 800x600] [children: 1] (z-index: auto) SC for BlockContainer [1,1 798x40] [children: 0] (z-index: auto)