Viewport <#document> at (0,0) content-size 800x600 children: not-inline BlockContainer at (0,0) content-size 800x16 [BFC] children: not-inline BlockContainer at (8,8) content-size 784x0 children: inline TextNode <#text> BlockContainer <(anonymous)> at (0,0) content-size 800x600 positioned [BFC] children: not-inline Box at (358.84375,291) content-size 82.3125x18 positioned flex-container(row) [FFC] children: not-inline BlockContainer <(anonymous)> (not painted) [BFC] children: inline TextNode <#text> BlockContainer at (358.84375,291) content-size 82.3125x18 flex-item [BFC] children: inline frag 0 from TextNode start: 0, length: 10, rect: [358.84375,291 82.3125x18] baseline: 13.796875 "I'm a node" TextNode <#text> BlockContainer <(anonymous)> (not painted) [BFC] children: inline TextNode <#text> ViewportPaintable (Viewport<#document>) [0,0 800x600] PaintableWithLines (BlockContainer) [0,0 800x16] PaintableWithLines (BlockContainer) [8,8 784x0] PaintableWithLines (BlockContainer(anonymous)) [0,0 800x600] PaintableBox (Box#modal) [339.84375,272 120.3125x56] PaintableWithLines (BlockContainer) [358.84375,291 82.3125x18] TextPaintable (TextNode<#text>) SC for Viewport<#document> [0,0 800x600] [children: 3] (z-index: auto) SC for BlockContainer [0,0 800x16] [children: 0] (z-index: auto) SC for BlockContainer(anonymous) [0,0 800x600] [children: 0] (z-index: auto) SC for Box#modal [358.84375,291 82.3125x18] [children: 0] (z-index: auto)