Viewport <#document> at (0,0) content-size 800x600 children: not-inline
BlockContainer at (0,0) content-size 800x89.84375 [BFC] children: not-inline
BlockContainer
at (8,21.4375) content-size 784x73.84375 children: not-inline
BlockContainer at (8,21.4375) content-size 784x34.9375 children: inline
line 0 width: 105.53125, height: 34.9375, bottom: 34.9375, baseline: 27.0625
frag 0 from TextNode start: 0, length: 6, rect: [8,21.4375 105.53125x34.9375]
"header"
TextNode <#text>
BlockContainer <(anonymous)> at (8,77.8125) content-size 784x17.46875 children: inline
line 0 width: 212.125, height: 17.46875, bottom: 17.46875, baseline: 13.53125
frag 0 from TextNode start: 0, length: 24, rect: [8,77.8125 212.125x17.46875]
"anonymously wrapped text"
TextNode <#text>
ViewportPaintable (Viewport<#document>) [0,0 800x600]
PaintableWithLines (BlockContainer) [0,0 800x89.84375] overflow: [0,0 800x95.28125]
PaintableWithLines (BlockContainer) [8,21.4375 784x73.84375]
PaintableWithLines (BlockContainer) [8,21.4375 784x34.9375]
TextPaintable (TextNode<#text>)
PaintableWithLines (BlockContainer(anonymous)) [8,77.8125 784x17.46875]
TextPaintable (TextNode<#text>)