#2906: Libretto: Search bar overlaps menu items (#6055)

libretto/style.css

@@ -2834,6 +2834,7 @@ object {
     -webkit-transition: all 0.25s linear;
             transition: all 0.25s linear;
     width: 400px;
+    z-index: 999;
   }
 
   #site-navigation .search-form label::before {