Use containerMenu as a base for HintMenu instead of regular menu

Change-Id: Ic1ed2e216a9c61aabf1f1cac41972b1a4e96a91a
diff --git a/dev/scss/header/containermenu.scss b/dev/scss/header/containermenu.scss
new file mode 100644
index 0000000..973bf6b
--- /dev/null
+++ b/dev/scss/header/containermenu.scss
@@ -0,0 +1,5 @@
+ul.containermenu {
+  > ul.container:not(.visible) {
+    display: none;
+  }
+}