diff --git a/kumascript/macros/LearnSidebar.ejs b/kumascript/macros/LearnSidebar.ejs
index 699b3357e8ed..577582187aae 100644
--- a/kumascript/macros/LearnSidebar.ejs
+++ b/kumascript/macros/LearnSidebar.ejs
@@ -447,6 +447,7 @@ const sections = [
           "CSS/Building_blocks/Sizing_items_in_CSS",
           "CSS/Building_blocks/Images_media_form_elements",
           "CSS/Building_blocks/Styling_tables",
+          "CSS/Building_blocks/Advanced_styling_effects",
           "CSS/Building_blocks/Debugging_CSS",
           "CSS/Building_blocks/Organizing",
           "CSS/Building_blocks/Fundamental_CSS_comprehension",