b9380a8a03
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The strut half-leading calculation in apply_vertical_align used the effective line height (inflated by tall inline-block elements like images) instead of the CSS computed line-height. For a line with a 76px image and CSS line-height: 15px, the strut got half_leading = (76 - font_height)/2 ≈ 30, inflating descent by ~30px. This caused floated containers to overflow their parents, leaking through shared BFC float contexts and displacing sibling floats. Fixes: pass CSS computed line-height separately for strut calculation; also pass parent font family/weight/style for accurate strut metrics. Adds float=left/right annotations to layout tree dumps for debugging. 32 WPT tests promoted from known_fail to pass. BMOW page sidebar moves from x=73 to x=829 (correct float:right), content from y=4375 to y=114. Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
56 lines
2.0 KiB
Plaintext
56 lines
2.0 KiB
Plaintext
LayoutBox node=#1 tag=html box=block
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content: (0, 0, 800, 76)
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padding: 0 0 0 0
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border: 0 0 0 0
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margin: 0 0 0 0
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LayoutBox node=#8 tag=body box=block
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content: (8, 8, 784, 60)
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padding: 0 0 0 0
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border: 0 0 0 0
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margin: 8 8 8 8
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inline_context: 1 lines, height=60, max_width=153.05432
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line[0]: rect=(108, 8, 153.05432, 60) fragments=1
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frag[0]: rect=(108, 8, 150, 60) text=(none) start=false end=false
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LayoutBox node=#9 tag=anonymous box=anon
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content: (0, 0, 3.0543318, 16)
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padding: 0 0 0 0
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border: 0 0 0 0
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margin: 0 0 0 0
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text: " "
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LayoutBox node=#10 tag=div box=block float=left
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content: (8, 8, 100, 50)
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padding: 0 0 0 0
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border: 0 0 0 0
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margin: 0 0 0 0
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inline_context: 0 lines, height=0, max_width=0
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LayoutBox node=#11 tag=anonymous box=anon
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content: (0, 0, 3.0543318, 16)
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padding: 0 0 0 0
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border: 0 0 0 0
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margin: 0 0 0 0
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text: " "
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LayoutBox node=#12 tag=div box=inline-block
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content: (108, 8, 150, 60)
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padding: 0 0 0 0
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border: 0 0 0 0
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margin: 0 0 0 0
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inline_context: 1 lines, height=19.2, max_width=133.38031
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line[0]: rect=(108, 8, 133.38031, 19.2) fragments=5
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frag[0]: rect=(108, 8, 31.189428, 16) text="Inline" start=false end=false
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frag[1]: rect=(142.24376, 8, 29.274597, 16) text="block" start=false end=false
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frag[2]: rect=(174.5727, 8, 24.340675, 16) text="next" start=false end=false
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frag[3]: rect=(201.96768, 8, 11.348018, 16) text="to" start=false end=false
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frag[4]: rect=(216.37003, 8, 25.010277, 16) text="float" start=false end=false
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LayoutBox node=#13 tag=anonymous box=anon
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content: (100, 0, 133.38033, 16)
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padding: 0 0 0 0
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border: 0 0 0 0
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margin: 0 0 0 0
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text: "Inline block next to..."
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LayoutBox node=#14 tag=anonymous box=anon
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content: (0, 0, 3.0543318, 16)
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padding: 0 0 0 0
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border: 0 0 0 0
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margin: 0 0 0 0
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text: " "
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