diff --git a/Libraries/LibWeb/DOM/Document.cpp b/Libraries/LibWeb/DOM/Document.cpp
index 8b1c0557c55..c2babf713e1 100644
--- a/Libraries/LibWeb/DOM/Document.cpp
+++ b/Libraries/LibWeb/DOM/Document.cpp
@@ -2508,16 +2508,32 @@ void Document::set_focused_element(GC::Ptr<Element> element)
     update_active_element();
 }
 
-void Document::set_active_element(Element* element)
+void Document::set_active_element(GC::Ptr<Element> element)
 {
     if (m_active_element.ptr() == element)
         return;
 
-    GC::Ptr<Node> old_active_element = move(m_active_element);
-    m_active_element = element;
+    auto old_active_element = move(m_active_element);
+    auto* common_ancestor = find_common_ancestor(old_active_element, element);
 
-    if (auto* invalidation_target = find_common_ancestor(old_active_element, m_active_element) ?: this)
-        invalidation_target->invalidate_style(StyleInvalidationReason::TargetElementChange);
+    GC::Ptr<Node> old_active_node_root = nullptr;
+    GC::Ptr<Node> new_active_node_root = nullptr;
+    if (old_active_element)
+        old_active_node_root = old_active_element->root();
+    if (element)
+        new_active_node_root = element->root();
+    if (old_active_node_root != new_active_node_root) {
+        if (old_active_node_root) {
+            invalidate_style_for_elements_affected_by_pseudo_class_change(CSS::PseudoClass::Active, m_active_element, *old_active_node_root, element);
+        }
+        if (new_active_node_root) {
+            invalidate_style_for_elements_affected_by_pseudo_class_change(CSS::PseudoClass::Active, m_active_element, *new_active_node_root, element);
+        }
+    } else {
+        invalidate_style_for_elements_affected_by_pseudo_class_change(CSS::PseudoClass::Active, m_active_element, *common_ancestor, element);
+    }
+
+    m_active_element = element;
 
     if (paintable())
         paintable()->set_needs_display();
diff --git a/Libraries/LibWeb/DOM/Document.h b/Libraries/LibWeb/DOM/Document.h
index e5214429393..d5ad75a9b4e 100644
--- a/Libraries/LibWeb/DOM/Document.h
+++ b/Libraries/LibWeb/DOM/Document.h
@@ -431,8 +431,7 @@ public:
     void set_focused_element(GC::Ptr<Element>);
 
     Element const* active_element() const { return m_active_element.ptr(); }
-
-    void set_active_element(Element*);
+    void set_active_element(GC::Ptr<Element>);
 
     Element const* target_element() const { return m_target_element.ptr(); }
     void set_target_element(GC::Ptr<Element>);