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 [1,1] [0+1+0 798 0+1+0] [0+1+0 18 0+1+0] [BFC] children: not-inline BlockContainer at [10,10] [8+1+0 780 0+1+8] [8+1+0 0 0+1+8] children: inline TextNode <#text> (not painted) BlockContainer at [6,6] positioned [0+1+0 10 0+1+0] [0+1+0 10 0+1+0] [BFC] children: not-inline TextNode <#text> (not painted) BlockContainer at [16,16] positioned [5+1+0 10 0+1+5] [5+1+0 10 0+1+5] [BFC] children: not-inline TextNode <#text> (not painted) BlockContainer at [11,11] positioned [5+1+0 10 0+1+5] [5+1+0 10 0+1+5] [BFC] children: not-inline TextNode <#text> (not painted) ViewportPaintable (Viewport<#document>) [0,0 800x600] PaintableWithLines (BlockContainer) [0,0 800x20] PaintableWithLines (BlockContainer) [9,9 782x2] PaintableWithLines (BlockContainer

.only-t-l) [5,5 12x12] PaintableWithLines (BlockContainer

.only-mt-ml) [15,15 12x12] PaintableWithLines (BlockContainer

.both) [10,10 12x12] SC for Viewport<#document> [0,0 800x600] [children: 1] (z-index: auto) SC for BlockContainer [1,1 798x18] [children: 0] (z-index: auto)