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 [8,8] [0+0+0 784 0+0+0] [0+0+0 56 0+0+0] [GFC] children: not-inline BlockContainer at [28,28] [0+0+20 744 20+0+0] [0+0+20 16 20+0+0] [BFC] children: inline frag 0 from TextNode start: 0, length: 1, rect: [396.828125,28 6.34375x16] baseline: 12.796875 "1" TextNode <#text> (not painted) ViewportPaintable (Viewport<#document>) [0,0 800x600] PaintableWithLines (BlockContainer) [0,0 800x72] PaintableWithLines (BlockContainer) [8,8 784x56] Paintable (Box
.grid-container) [8,8 784x56] PaintableWithLines (BlockContainer
.grid-item) [8,8 784x56] SC for Viewport<#document> [0,0 800x600] (z-index: auto) SC for BlockContainer [0,0 800x72] (z-index: auto)