Viewport <#document> at (0,0) content-size 800x600 children: not-inline
BlockContainer at (0,0) content-size 800x89.4375 [BFC] children: not-inline
BlockContainer
at (8,21.4375) content-size 784x73.4375 children: not-inline
BlockContainer at (8,21.4375) content-size 784x35 children: inline
frag 0 from TextNode start: 0, length: 6, rect: [8,21.4375 105.53125x35] baseline: 27.09375
"header"
TextNode <#text>
BlockContainer <(anonymous)> at (8,77.875) content-size 784x17 children: inline
frag 0 from TextNode start: 0, length: 24, rect: [8,77.875 212.125x17] baseline: 13.296875
"anonymously wrapped text"
TextNode <#text>
ViewportPaintable (Viewport<#document>) [0,0 800x600]
PaintableWithLines (BlockContainer) [0,0 800x89.4375] overflow: [0,0 800x94.875]
PaintableWithLines (BlockContainer) [8,21.4375 784x73.4375]
PaintableWithLines (BlockContainer) [8,21.4375 784x35]
TextPaintable (TextNode<#text>)
PaintableWithLines (BlockContainer(anonymous)) [8,77.875 784x17]
TextPaintable (TextNode<#text>)