diff --git a/README.md b/README.md
index 0d55463..c381487 100644
--- a/README.md
+++ b/README.md
@@ -81,7 +81,6 @@ easy_admin:
     design:
         assets:
             css:
-                - 'bundles/easyadmin/app.css'
                 - 'bundles/easyadminextension/stylesheet/full-width.css'
 ```
 
diff --git a/src/Resources/public/js/autocomplete-create.js b/src/Resources/public/js/autocomplete-create.js
index daf1b97..3c0b9dc 100644
--- a/src/Resources/public/js/autocomplete-create.js
+++ b/src/Resources/public/js/autocomplete-create.js
@@ -95,6 +95,8 @@ function initCreateEntityAjaxForm(field_name, select_id) {
   });
 }
 
-$(function () {
-  createAutoCompleteCreateFields();
+window.addEventListener('load', function() {
+  $(function () {
+    createAutoCompleteCreateFields();
+  });
 });
diff --git a/src/Resources/public/js/easyadmin-extension.js b/src/Resources/public/js/easyadmin-extension.js
index df6ccc7..3c5493c 100644
--- a/src/Resources/public/js/easyadmin-extension.js
+++ b/src/Resources/public/js/easyadmin-extension.js
@@ -52,25 +52,27 @@ function reloadEmbeddedList(identifier, toggleBaseUrl) {
   }
 }
 
-$(function() {
-  $('[data-confirm]').on('click', function(e) {
-    e.preventDefault();
+window.addEventListener('load', function() {
+  $(function() {
+    $('[data-confirm]').on('click', function(e) {
+      e.preventDefault();
 
-    var message = $(this).data('confirm');
-    var content = $('#modal-confirm p.modal-body-content');
-    content.html(message);
+      var message = $(this).data('confirm');
+      var content = $('#modal-confirm p.modal-body-content');
+      content.html(message);
 
-    var confirmButton = $('#modal-confirm #modal-confirm-button');
-    if (!confirmButton.find('i').length) { confirmButton.prepend('<i></i>'); }
-    confirmButton.find('i')
-      .removeClass()
-      .addClass($(this).find('i').attr('class'))
-    ;
+      var confirmButton = $('#modal-confirm #modal-confirm-button');
+      if (!confirmButton.find('i').length) { confirmButton.prepend('<i></i>'); }
+      confirmButton.find('i')
+        .removeClass()
+        .addClass($(this).find('i').attr('class'))
+      ;
 
-    var href = $(this).data('href');
-    $('#modal-confirm #confirm-form').attr('action', href);
+      var href = $(this).data('href');
+      $('#modal-confirm #confirm-form').attr('action', href);
 
-    $('#modal-confirm').modal({ backdrop: true, keyboard: true });
+      $('#modal-confirm').modal({ backdrop: true, keyboard: true });
+    });
   });
 });
 
diff --git a/src/Resources/views/default/new_ajax.html.twig b/src/Resources/views/default/new_ajax.html.twig
index 1ca058a..3cf023a 100644
--- a/src/Resources/views/default/new_ajax.html.twig
+++ b/src/Resources/views/default/new_ajax.html.twig
@@ -2,9 +2,15 @@
 
 {% block head_stylesheets %}
     <style>
-        #create-entity-modal .main-sidebar {
+        #create-entity-modal .main-sidebar,
+        #create-entity-modal .main-header {
             display: none !important;
         }
+        #create-entity-modal .wrapper {
+            grid-template-columns: none !important;
+            grid-column-gap: none !important;
+            grid-template-areas: none !important;
+        }
         #create-entity-modal .content-wrapper,
         #create-entity-modal .main-footer {
             margin-left: 0 !important;
@@ -26,7 +32,7 @@
         : _app_language in _select2_locales ? _app_language : 'en'
     %}
 
-    <script src="{{ asset('bundles/easyadmin/javascript/select2/i18n/' ~ _select2_locale ~ '.js') }}"></script>
+    <script src="{{ asset('bundles/easyadmin/select2/i18n/' ~ _select2_locale ~ '.js') }}"></script>
 
     <script type="text/javascript">
     $(function() {