Viewport <#document> at (0,0) content-size 800x600 children: not-inline BlockContainer at (0,0) content-size 800x600 [BFC] children: not-inline BlockContainer at (8,8) content-size 784x200 children: not-inline Box at (8,8) content-size 784x200 [GFC] children: not-inline BlockContainer at (8,8) content-size 100x200 [BFC] children: inline frag 0 from TextNode start: 0, length: 5, rect: [8,8 42.140625x17] baseline: 13.296875 "First" TextNode <#text> ViewportPaintable (Viewport<#document>) [0,0 800x600] PaintableWithLines (BlockContainer) [0,0 800x600] PaintableWithLines (BlockContainer) [8,8 784x200] PaintableBox (Box

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

.first) [8,8 100x200] TextPaintable (TextNode<#text>)