Index: Source/core/layout/LayoutBlockFlow.cpp |
diff --git a/Source/core/layout/LayoutBlockFlow.cpp b/Source/core/layout/LayoutBlockFlow.cpp |
index 2921f4f0cc6bb8ff92a412d00b34132a1f9d1ac9..c00d5219ed6aea35359ce00291d26cb56d6c973e 100644 |
--- a/Source/core/layout/LayoutBlockFlow.cpp |
+++ b/Source/core/layout/LayoutBlockFlow.cpp |
@@ -1327,7 +1327,7 @@ LayoutUnit LayoutBlockFlow::collapseMargins(LayoutBox& child, MarginInfo& margin |
// floats in the parent that overhang |child|'s new logical top. |
bool logicalTopIntrudesIntoFloat = clearanceForSelfCollapsingBlock > 0 && logicalTop < beforeCollapseLogicalTop; |
if (logicalTopIntrudesIntoFloat && containsFloats() && !child.avoidsFloats() && lowestFloatLogicalBottom() > logicalTop) |
- child.setNeedsLayoutAndFullPaintInvalidation(); |
+ child.setNeedsLayoutAndFullPaintInvalidation(LayoutInvalidationReason::AncestorMarginCollapsing); |
} |
return logicalTop; |