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+0 106 0+0+0] [BFC] children: not-inline BlockContainer at [8,8] [8+0+0 784 0+0+8] [8+0+0 90 0+0+8] children: not-inline BlockContainer at [8,8] [0+0+0 784 0+0+0] [0+0+0 20 0+0+50] children: not-inline BlockContainer at [8,78] [0+0+0 784 0+0+0] [0+0+0 20 0+0+0] [BFC] children: not-inline BlockContainer at [8,78] [0+0+0 20 0+0+764] [0+0+0 20 0+0+0] children: not-inline ViewportPaintable (Viewport<#document>) [0,0 800x600] PaintableWithLines (BlockContainer) [0,0 800x106] PaintableWithLines (BlockContainer) [8,8 784x90] PaintableWithLines (BlockContainer

.upper) [8,8 784x20] PaintableWithLines (BlockContainer

.bfc) [8,78 784x20] PaintableWithLines (BlockContainer

.inner) [8,78 20x20] SC for Viewport<#document> [0,0 800x600] [children: 1] (z-index: auto) SC for BlockContainer [0,0 800x106] [children: 0] (z-index: auto)