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 0 0+0+0] [BFC] children: not-inline
BlockContainer
at [8,8] positioned [8+0+0 300 0+0+8] [8+0+0 300 0+0+8] [BFC] children: inline
InlineNode at [8,8] [0+0+0 74.125 16+0+0] [0+0+0 18 0+0+0]
frag 0 from TextNode start: 0, length: 8, rect: [8,8 74.125x18] baseline: 13.796875
"Features"
TextNode <#text> (not painted)
BlockContainer at [85.625,16.09375] positioned [0+0+0 8 0+0+0] [0+0+0 8 0+0+0] [BFC] children: not-inline
TextNode <#text> (not painted)
ViewportPaintable (Viewport<#document>) [0,0 800x600]
PaintableWithLines (BlockContainer) [0,0 800x0]
PaintableWithLines (BlockContainer) [8,8 300x300]
PaintableWithLines (InlineNode.span1) [8,8 90.125x18]
TextPaintable (TextNode<#text>)
PaintableWithLines (BlockContainer.span2) [85.625,16.09375 8x8]
SC for Viewport<#document> [0,0 800x600] [children: 1] (z-index: auto)
SC for BlockContainer [0,0 800x0] [children: 0] (z-index: auto)