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+0 123 0+0+0] [BFC] children: not-inline BlockContainer at [8,8] [8+0+0 784 0+0+8] [8+0+0 107 0+0+8] children: not-inline BlockContainer at [8,8] [0+0+0 784 0+0+0] [0+0+0 16 0+0+75] children: inline frag 0 from TextNode start: 0, length: 5, rect: [8,8 46.15625x16] baseline: 12.796875 "upper" TextNode <#text> (not painted) BlockContainer at [8,99] [0+0+0 784 0+0+0] [0+0+0 0 0+0+0] children: not-inline BlockContainer at [8,99] [0+0+0 784 0+0+0] [0+0+0 16 0+0+0] children: inline frag 0 from TextNode start: 0, length: 5, rect: [8,99 43.359375x16] baseline: 12.796875 "lower" TextNode <#text> (not painted) ViewportPaintable (Viewport<#document>) [0,0 800x600] PaintableWithLines (BlockContainer) [0,0 800x123] PaintableWithLines (BlockContainer) [8,8 784x107] PaintableWithLines (BlockContainer

.upper) [8,8 784x16] PaintableWithLines (BlockContainer

.mystery) [8,99 784x0] PaintableWithLines (BlockContainer

.lower) [8,99 784x16] SC for Viewport<#document> [0,0 800x600] (z-index: auto) SC for BlockContainer [0,0 800x123] (z-index: auto)