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+0 300 0+0+0] [BFC] children: not-inline BlockContainer at [0,200] [0+0+0 800 0+0+0] [0+0+0 100 0+0+0] children: not-inline BlockContainer at [0,200] [0+0+0 800 0+0+0] [100+0+0 0 0+0+0] children: not-inline BlockContainer at [0,200] [0+0+0 100 0+0+700] [200+0+0 100 0+0+0] children: not-inline ViewportPaintable (Viewport<#document>) [0,0 800x600] PaintableWithLines (BlockContainer) [0,0 800x300] PaintableWithLines (BlockContainer) [0,200 800x100] PaintableWithLines (BlockContainer

.bump) [0,200 800x0] PaintableWithLines (BlockContainer

.content) [0,200 100x100] SC for Viewport<#document> [0,0 800x600] [children: 1] (z-index: auto) SC for BlockContainer [0,0 800x300] [children: 0] (z-index: auto)