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: not-inline
ImageBox ![]()
at (8,8) content-size 0x0 children: not-inline
ViewportPaintable (Viewport<#document>) [0,0 800x600]
PaintableWithLines (BlockContainer) [0,0 800x16]
PaintableWithLines (BlockContainer) [8,8 784x0]
ImagePaintable (ImageBox![]()
) [8,8 0x0]