add dropdown menu in header

themes/custom/envigo/envigo.libraries.yml

@@ -15,16 +15,16 @@ global-style:
       css/videos.css: {}
       css/leadership.css: {}
       css/product-main.css: {}
-      
+
   js:
-    theme:
-      js/jquery.min.js: {}
-      js/slick.min.js: {}
-      js/custom.js: {}
-      js/mwheelIntent.js: {}
-      js/masonry.pkgd.min.js: {}
-      js/lightbox.js: {}
-      js/jquery.validate.min.js: {}
-      js/jquery.mousewheel.js: {}
-      js/jquery.jscrollpane.min.js: {}
-      js/imagesloaded.pkgd.min.js: {}
+    js/slick.min.js: {}
+    js/custom.js: {}
+    js/mwheelIntent.js: {}
+    js/masonry.pkgd.min.js: {}
+    js/lightbox.js: {}
+    js/jquery.validate.min.js: {}
+    js/jquery.mousewheel.js: {}
+    js/jquery.jscrollpane.min.js: {}
+    js/imagesloaded.pkgd.min.js: {}
+  dependencies:
+    - core/jquery

themes/custom/envigo/js/custom.js

 (function ($) {
-  alert('test');
   var includes = $("[data-include]");
   jQuery.each(includes, function () {
     var file = /* 'views/' +  */ $(this).data("include") + ".html";

themes/custom/envigo/templates/layout/html.html.twig

@@ -37,7 +37,7 @@
     <head-placeholder token="{{ placeholder_token }}">
     <title>{{ head_title|safe_join(' | ') }}</title>
      <link href="https://fonts.googleapis.com/css2?family=Lato:ital,wght@0,100;0,300;0,400;0,700;0,900;1,300;1,400;1,700;1,900&display=swap" rel="stylesheet">
-      <link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/font-awesome/4.7.0/css/font-awesome.min.css" integrity="sha384-wvfXpqpZZVQGK6TAh5PVlGOfQNHSoD2xbE+QkPxCAFlNEevoEH3Sl0sibVcOQVnN" crossorigin="anonymous">
+    <link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/font-awesome/4.7.0/css/font-awesome.min.css" integrity="sha384-wvfXpqpZZVQGK6TAh5PVlGOfQNHSoD2xbE+QkPxCAFlNEevoEH3Sl0sibVcOQVnN" crossorigin="anonymous">
     <css-placeholder token="{{ placeholder_token }}">
     <js-placeholder token="{{ placeholder_token }}">
   </head>

themes/custom/envigo/templates/navigation/menu--main.html.twig

@@ -33,8 +33,9 @@
       <div class="h_menu_c_b">
       <ul class="h_nav_main">
     {% else %}
-      <div class="h_menu_c_b">
-      <ul class="h_nav_main">
+      <div class="header-nav-item-child-list">
+      <em><i class="fa fa-angle-down" aria-hidden="true"></i></em>
+      <ul class="pure-g">
     {% endif %}
     {% for item in items %}
       {%