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 16 0+0+0] [BFC] children: not-inline BlockContainer at [8,8] [8+0+0 784 0+0+8] [8+0+0 0 0+0+8] children: inline Box at [8,8] positioned flex-container(row) [0+0+0 100 0+0+0] [0+0+0 100 0+0+0] [FFC] children: not-inline BlockContainer <(anonymous)> (not painted) [BFC] children: inline TextNode <#text> (not painted) BlockContainer at [48,18] positioned [500+5+5 50 5+5+0] [0+5+5 50 5+5+0] [BFC] children: not-inline BlockContainer <(anonymous)> (not painted) [BFC] children: inline TextNode <#text> (not painted) TextNode <#text> (not painted) ViewportPaintable (Viewport<#document>) [0,0 800x600] PaintableWithLines (BlockContainer) [0,0 800x16] PaintableWithLines (BlockContainer) [8,8 784x0] PaintableBox (Box
.container) [8,8 100x100] PaintableWithLines (BlockContainer
.top-right) [38,8 70x70] SC for Viewport<#document> [0,0 800x600] [children: 1] (z-index: auto) SC for BlockContainer [0,0 800x16] [children: 0] (z-index: auto)