diff --git a/docs/src/layouts/App/style.scss b/docs/src/layouts/App/style.scss
index fe735443..6511dfae 100644
--- a/docs/src/layouts/App/style.scss
+++ b/docs/src/layouts/App/style.scss
@@ -25,12 +25,17 @@ $menuBreakPoint: 750px;
   }
 
   &__link-list &__link-list {
+    display: none;
     padding-left: 1rem;
     margin-top: 0.5rem;
     margin-bottom: 1.5rem;
     border-left: 2px solid rgba($colorBlack, 0.1);
   }
 
+  .active + &__link-list {
+    display: block;
+  }
+
   &__link {
     display: block;
     padding: 0.1rem 0.5rem;