Viewport <#document> at (0,0) content-size 800x600 children: not-inline BlockContainer at (0,0) content-size 800x136 [BFC] children: not-inline BlockContainer at (18,18) content-size 764x100 children: not-inline BlockContainer at (18,18) content-size 100x100 children: not-inline ViewportPaintable (Viewport<#document>) [0,0 800x600] PaintableWithLines (BlockContainer) [0,0 800x136] PaintableWithLines (BlockContainer) [8,8 784x120] PaintableWithLines (BlockContainer

.box) [18,18 100x100] SC for Viewport<#document> [0,0 800x600] [children: 1] (z-index: auto) SC for BlockContainer [0,0 800x136] [children: 0] (z-index: auto)