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+0 216 0+0+0] [BFC] children: not-inline BlockContainer at [8,8] [8+0+0 784 0+0+8] [8+0+0 200 0+0+8] children: not-inline Box at [8,8] [0+0+0 784 0+0+0] [0+0+0 200 0+0+0] [GFC] children: not-inline BlockContainer at [8,8] [0+0+0 100 0+0+0] [0+0+0 200 0+0+0] [BFC] children: inline frag 0 from TextNode start: 0, length: 5, rect: [8,8 42.140625x18] baseline: 13.796875 "First" TextNode <#text> (not painted) ViewportPaintable (Viewport<#document>) [0,0 800x600] PaintableWithLines (BlockContainer) [0,0 800x216] PaintableWithLines (BlockContainer) [8,8 784x200] PaintableBox (Box

.grid-container) [8,8 784x200] PaintableWithLines (BlockContainer

.first) [8,8 100x200] TextPaintable (TextNode<#text>) SC for Viewport<#document> [0,0 800x600] [children: 1] (z-index: auto) SC for BlockContainer [0,0 800x216] [children: 0] (z-index: auto)