diff --git a/Libraries/LibHTML/DOM/Document.cpp b/Libraries/LibHTML/DOM/Document.cpp
index 9b0cde1ad0..492b1b231a 100644
--- a/Libraries/LibHTML/DOM/Document.cpp
+++ b/Libraries/LibHTML/DOM/Document.cpp
@@ -153,10 +153,17 @@ URL Document::complete_url(const String& string) const
 
 void Document::layout()
 {
-    m_layout_root = create_layout_tree(style_resolver(), nullptr);
+    if (!m_layout_root)
+        m_layout_root = create_layout_tree(style_resolver(), nullptr);
     m_layout_root->layout();
 }
 
+void Document::invalidate_style()
+{
+    m_layout_root = nullptr;
+    invalidate_layout();
+}
+
 void Document::invalidate_layout()
 {
     layout();
diff --git a/Libraries/LibHTML/DOM/Document.h b/Libraries/LibHTML/DOM/Document.h
index 0566298b59..148d577417 100644
--- a/Libraries/LibHTML/DOM/Document.h
+++ b/Libraries/LibHTML/DOM/Document.h
@@ -67,6 +67,7 @@ public:
 
     void layout();
 
+    void invalidate_style();
     void invalidate_layout();
     Function<void()> on_invalidate_layout;
 
diff --git a/Libraries/LibHTML/DOM/HTMLLinkElement.cpp b/Libraries/LibHTML/DOM/HTMLLinkElement.cpp
index 94a955731f..194427ae6f 100644
--- a/Libraries/LibHTML/DOM/HTMLLinkElement.cpp
+++ b/Libraries/LibHTML/DOM/HTMLLinkElement.cpp
@@ -29,7 +29,7 @@ void HTMLLinkElement::inserted_into(Node&)
                 return;
             }
             document().add_sheet(*sheet);
-            document().invalidate_layout();
+            document().invalidate_style();
         });
     }
 }