Viewport <#document> at (0,0) content-size 800x600 children: not-inline BlockContainer at (0,0) content-size 800x34 [BFC] children: not-inline BlockContainer at (8,8) content-size 784x18 children: inline InlineNode frag 0 from TextNode start: 1, length: 23, rect: [8,8 181.5x18] baseline: 13.796875 "This should be visible!" TextNode <#text> TextNode <#text> ViewportPaintable (Viewport<#document>) [0,0 800x600] PaintableWithLines (BlockContainer) [0,0 800x34] PaintableWithLines (BlockContainer) [8,8 784x18] PaintableWithLines (InlineNode) [8,8 181.5x18] TextPaintable (TextNode<#text>) SC for Viewport<#document> [0,0 800x600] [children: 1] (z-index: auto) SC for BlockContainer [0,0 800x34] [children: 0] (z-index: auto)