LibWeb: Join out-of-flow block nodes in last parent child if possible

Join out-of-flow block nodes into last child of parent node if last
child has inline children.

1 files changed, 7 insertions, 5 deletions

diff --git a/Userland/Libraries/LibWeb/Layout/TreeBuilder.cpp b/Userland/Libraries/LibWeb/Layout/TreeBuilder.cpp
index e4c7ceb04b..c0deb7af22 100644
--- a/Userland/Libraries/LibWeb/Layout/TreeBuilder.cpp
+++ b/Userland/Libraries/LibWeb/Layout/TreeBuilder.cpp
@@ -83,13 +83,15 @@ static Layout::Node& insertion_parent_for_block_node(Layout::NodeWithStyle& layo
         return layout_parent;
     }
 
-    if (!layout_parent.children_are_inline()) {
-        // Parent block has block-level children, insert this block into parent.
-        return layout_parent;
-    }
-
     if (layout_node.is_floating() || layout_node.is_absolutely_positioned()) {
         // Block is out-of-flow, it can have inline siblings if necessary.
+        if (layout_parent.last_child()->children_are_inline()) {
+            return *layout_parent.last_child();
+        }
+    }
+
+    if (!layout_parent.children_are_inline()) {
+        // Parent block has block-level children, insert this block into parent.
         return layout_parent;
     }