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@@ -880,7 +880,12 @@ void NodeWithStyle::apply_style(const CSS::StyleProperties& computed_style)
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} else if (aspect_ratio->is_keyword() && aspect_ratio->as_keyword().keyword() == CSS::Keyword::Auto) {
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computed_values.set_aspect_ratio({ true, {} });
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} else if (aspect_ratio->is_ratio()) {
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- computed_values.set_aspect_ratio({ false, aspect_ratio->as_ratio().ratio() });
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+ // https://drafts.csswg.org/css-sizing-4/#aspect-ratio
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+ // If the <ratio> is degenerate, the property instead behaves as auto.
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+ if (aspect_ratio->as_ratio().ratio().is_degenerate())
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+ computed_values.set_aspect_ratio({ true, {} });
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+ else
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+ computed_values.set_aspect_ratio({ false, aspect_ratio->as_ratio().ratio() });
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}
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auto math_shift_value = computed_style.property(CSS::PropertyID::MathShift);
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Magnus Johansson