diff --git a/components/navbar-category.php b/components/navbar-category.php
index 1db58bb..4424907 100644
--- a/components/navbar-category.php
+++ b/components/navbar-category.php
@@ -1,19 +1,33 @@
-<nav class="navbar navbar-expand-lg navbar-dark bg-grey" id="navbar-category">
-  <button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#navbarSupportedContent" aria-controls="navbarSupportedContent" aria-expanded="false" aria-label="Toggle navigation">
-    <span class="navbar-toggler-icon"></span>
-  </button>
+<?php
+  $parent_categories = get_categories( array(
+    'orderby' => 'slug',
+    'order'   => 'ASC',
+    'parent'  => 0
+  ) );
 
-  <div class="collapse navbar-collapse" id="navbarSupportedContent">
-    <ul class="navbar-nav nav-justified w-100">
-      <?php
-        $categories = get_categories( array(
-          'orderby' => 'name',
-          'order'   => 'ASC'
-        ) );
+  foreach( $parent_categories as $parent_category ) {
+?>
+  <li>
+    <span class="btn btn-navbar">
+      <?php echo $parent_category->name ?> <i class="fa fa-caret-down" aria-hidden="true"></i>
 
-        foreach( $categories as $category ) {
-          echo '<li class="nav-item"><a class="nav-link" href="' . get_category_link($category->term_id) . '">' . $category->name . '</a></li>';   
-        }?>
-    </ul>
-  </div>
-</nav>
+      <ul class="card-menu">
+        <?php
+          $categories = get_categories( array(
+            'orderby' => 'slug',
+            'order'   => 'ASC',
+            'parent'  => $parent_category->term_id
+          ) );
+
+          foreach( $categories as $category ) {
+            if ($category->slug != "chapters") {
+              echo '<li><a class="menu-element" href="' . get_category_link($category->term_id) . '">' . $category->name . '</a></li>';
+              }
+          }
+        ?>
+      </ul>
+    </span>
+  </li>      
+<?php      
+  }
+?>
diff --git a/components/navbar-pages.php b/components/navbar-pages.php
index 82fbe8c..4952206 100644
--- a/components/navbar-pages.php
+++ b/components/navbar-pages.php
@@ -5,24 +5,7 @@
         <i class="fa fa-home"  aria-hidden="true"></i><span class="sr-only">Accueil</span>
       </a>
     </li>
-    <li>
-      <span class="btn btn-navbar">
-        Catégories <i class="fa fa-caret-down" aria-hidden="true"></i>
-        <ul class="card-menu">
-          <?php
-            $categories = get_categories( array(
-              'orderby' => 'name',
-              'order'   => 'ASC'
-            ) );
-
-            foreach( $categories as $category ) {
-              if ($category->slug != "blog" && $category->slug != "chapters") {
-                echo '<li><a class="menu-element" href="' . get_category_link($category->term_id) . '">' . $category->name . '</a></li>';
-                }
-            }?>
-        </ul>
-      </span>
-    </li>
+    <?php include(TEMPLATEPATH . '/components/navbar-category.php'); ?>
     <?php
       $listmenu = get_nav_menu_locations();
       $menu = wp_get_nav_menu_items($listmenu['top-navbar']);
diff --git a/components/sidebar/categories.php b/components/sidebar/categories.php
index 233e9d7..878e6ed 100644
--- a/components/sidebar/categories.php
+++ b/components/sidebar/categories.php
@@ -1,16 +1,30 @@
-<div class="card card-primary">
-  <div class="card-header"><i class="fa fa-folder" aria-hidden="true"></i> Catégories</div>
-  <ul class="card-menu">
-    <?php
-      $categories = get_categories( array(
-        'orderby' => 'name',
-        'order'   => 'ASC'
-      ) );
+<?php
+  $parent_categories = get_categories( array(
+    'orderby' => 'slug',
+    'order'   => 'ASC',
+    'parent'  => 0
+  ) );
 
-      foreach( $categories as $category ) {
-        if ($category->slug != "blog" && $category->slug != "chapters") {
-          echo '<li><a class="menu-element" href="' . get_category_link($category->term_id) . '">' . $category->name . '<span class="menu-label label-secondary">'. $category->count . '</span></a></li>';
+  foreach( $parent_categories as $parent_category ) {
+?>
+    <div class="card card-primary">
+      <div class="card-header"><i class="fa fa-folder" aria-hidden="true"></i> <?php echo $parent_category->name ?></div>
+      <ul class="card-menu">
+        <?php
+          $categories = get_categories( array(
+            'orderby' => 'slug',
+            'order'   => 'ASC',
+            'parent'  => $parent_category->term_id
+          ) );
+
+          foreach( $categories as $category ) {
+            if ($category->slug != "chapters") {
+              echo '<li><a class="menu-element" href="' . get_category_link($category->term_id) . '">' . $category->name . '<span class="menu-label label-secondary">'. $category->count . '</span></a></li>';
+              }
           }
-      }?>
-  </ul>
-</div>
+        ?>
+      </ul>
+    </div>
+<?php      
+  }
+?>