Viewport <#document> at (0,0) content-size 800x600 children: not-inline BlockContainer at (0,0) content-size 800x116 [BFC] children: not-inline Box at (8,8) content-size 400x100 flex-container(row) [FFC] children: not-inline Box at (8,8) content-size 200x100 flex-container(column) flex-item [FFC] children: not-inline BlockContainer at (8,8) content-size 200x200 flex-item [BFC] children: not-inline BlockContainer at (8,8) content-size 200x200 children: not-inline BlockContainer at (8,208) content-size 200x17 flex-item [BFC] children: inline frag 0 from TextNode start: 0, length: 3, rect: [8,208 26.953125x17] baseline: 13.296875 "whf" TextNode <#text> ViewportPaintable (Viewport<#document>) [0,0 800x600] PaintableWithLines (BlockContainer) [0,0 800x116] overflow: [0,0 800x225] PaintableBox (Box) [8,8 400x100] overflow: [8,8 400x217] PaintableBox (Box

.outer) [8,8 200x100] overflow: [8,8 200x217] PaintableWithLines (BlockContainer

.upper) [8,8 200x200] PaintableWithLines (BlockContainer

.spacer) [8,8 200x200] PaintableWithLines (BlockContainer

.lower) [8,208 200x17] TextPaintable (TextNode<#text>)