breadcrumb

composer.lock

@@ -4,7 +4,7 @@
         "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#installing-dependencies",
         "This file is @generated automatically"
     ],
-    "content-hash": "cc3d29c7253fdc07cd13d6d07968ca95",
+    "content-hash": "ac9d6b4c23e1156901adb2d3916d33bf",
     "packages": [
         {
             "name": "asm89/stack-cors",

config/sync/block.block.mathallo_contenu_2.yml

@@ -0,0 +1,34 @@
+uuid: 48a82b35-91a5-4ef6-9411-158ce663b4c3
+langcode: fr
+status: true
+dependencies:
+  config:
+    - system.menu.contenu
+  module:
+    - menu_block
+  theme:
+    - mathallo
+id: mathallo_contenu_2
+theme: mathallo
+region: breadcrumb
+weight: 0
+provider: null
+plugin: 'menu_block:contenu'
+settings:
+  id: 'menu_block:contenu'
+  label: Contenu
+  label_display: '0'
+  provider: menu_block
+  follow: false
+  follow_parent: child
+  display_empty: false
+  label_link: false
+  label_type: block
+  level: 1
+  depth: 0
+  expand_all_items: false
+  parent: 'contenu:'
+  render_parent: false
+  suggestion: contenu
+  hide_on_nonactive: true
+visibility: {  }

web_main/themes/custom/mathallo/assets/scss/main.scss

@@ -1,5 +1,6 @@
 @import "partials/colors";
 @import "partials/fonts";
+@import "partials/mixins";
 
 a, a:visited{
   text-decoration: none;
@@ -15,6 +16,15 @@ body{
 
 $header_height: 50px;
 
+//  _                             _   
+// | |                           | |  
+// | |     __ _ _   _  ___  _   _| |_ 
+// | |    / _` | | | |/ _ \| | | | __|
+// | |___| (_| | |_| | (_) | |_| | |_ 
+// \_____/\__,_|\__, |\___/ \__,_|\__|
+//               __/ |                
+//              |___/                 
+
 div.layout-container{
   // display: flex;
   // flex-direction: column;
@@ -29,8 +39,16 @@ div.layout-container{
     width: 100vw;
     height: $header_height;
   }
+  nav[role="breadcrumb"]{
+    // flex: 1 1 auto; 
+    position: fixed;     
+    z-index: 90;
+    top:$header_height + 40px;
+    left: 20px;
+  }
   main[role="main"]{
     // flex: 1 1 auto; 
+    padding:5em 0;
     overflow-y: scroll;
   }
   footer[role="contentinfo"]{
@@ -44,7 +62,14 @@ div.layout-container{
 
 
 
-
+//  _   _                _           
+// | | | |              | |          
+// | |_| | ___  __ _  __| | ___ _ __ 
+// |  _  |/ _ \/ _` |/ _` |/ _ \ '__|
+// | | | |  __/ (_| | (_| |  __/ |   
+// \_| |_/\___|\__,_|\__,_|\___|_|   
+                                  
+                                                                    
 header[role="banner"]{ 
   background-color: #fff;
   box-shadow: 0 -5px 15px #000;
@@ -130,36 +155,18 @@ header[role="banner"]{
       }
 
       nav#block-mathallo-contenu{
-        padding: 1em;
+        @include menu-contenus;
-        ul,li{
-          padding: 0;
-          margin:0;
-          list-style: none;
-        }
         li{
           padding:0 0 1em 0;
           &:first-child{
             padding:0.25em 0 1em;
           }
         }
-        label{
-          color:$bleu_site;
-          font-weight: 600;
-          display: block;
-          font-size: 0.756em;
-          padding:0 0 0.25em 0;
-          &:has(+ a:hover){
-            color: $rose;
-          }
-        }
-        a{
-          font-size: 1.13em;
-        }
         &>ul{ // chapitres
           display: flex;
           flex-direction: row;
           gap: 2em;
-         >li{
+          >li{
           >ul{ // parties
             margin:0.75em 0 0;
             padding:0 0 0 1em;
@@ -168,7 +175,7 @@ header[role="banner"]{
             }
           }
 
-         }
+          }
         }
       }
       nav#block-mathallo-navigationprincipale{
@@ -192,9 +199,58 @@ header[role="banner"]{
   }
 } // end of header[role="banner"]{
 
+
+// ______                    _                           _     
+// | ___ \                  | |                         | |    
+// | |_/ /_ __ ___  __ _  __| | ___ _ __ _   _ _ __ ___ | |__  
+// | ___ \ '__/ _ \/ _` |/ _` |/ __| '__| | | | '_ ` _ \| '_ \ 
+// | |_/ / | |  __/ (_| | (_| | (__| |  | |_| | | | | | | |_) |
+// \____/|_|  \___|\__,_|\__,_|\___|_|   \__,_|_| |_| |_|_.__/ 
+
+nav[role="breadcrumb"]{ 
+  background-color: #fff;
+  box-shadow: 0 0 10px rgba(0,0,0,0.25);
+  padding:0em;
+
+  ul{
+    margin:0;
+    padding-left: 0.5em;
+    li{
+      list-style: none;
+    }
+  }
+  #block-mathallo-contenu-2{
+    @include menu-contenus;
+    padding: 0.5em 1em;
+    li:not(.in-active-trail){
+      display: none;
+    }
+    ul,li{
+      display: flex;
+      flex-direction: row;
+      align-items: baseline;
+      gap: 1em;
+    }
+    a{
+      font-size: 1em;
+    }
+    &>ul>li>ul>li{
+      padding-left: 1em;
+      border-left: 2px solid $bleu_site;
+    }
+  }
+}
+
+
+// ___  ___      _       
+// |  \/  |     (_)      
+// | .  . | __ _ _ _ __  
+// | |\/| |/ _` | | '_ \ 
+// | |  | | (_| | | | | |
+// \_|  |_/\__,_|_|_| |_|
+                      
 main[role="main"]{
   div.layout-content{
-    padding:5em 0;
     article{
       position: relative;
       background-color: #fff;
@@ -207,7 +263,8 @@ main[role="main"]{
         @include titre_h2;
         margin:0;
       }
-      div.field-chapitre-num{
+      div.field-chapitre-num,
+      div.field-partie-num{
         background-color: $bleu_site;
         color: #fff;
         display: inline-flex;
@@ -222,6 +279,14 @@ main[role="main"]{
       }
 
     }
+    article.node-type-chapitre{
+      
+    }
+    section.parties{
+      display: flex;
+      gap: 2em;
+      padding:1em;
+    }
     // HOME
     div.views-home-chapitres{
       display: flex;
@@ -241,7 +306,13 @@ main[role="main"]{
   }
 }
 
-
+// ______          _            
+// |  ___|        | |           
+// | |_ ___   ___ | |_ ___ _ __ 
+// |  _/ _ \ / _ \| __/ _ \ '__|
+// | || (_) | (_) | ||  __/ |   
+// \_| \___/ \___/ \__\___|_|   
+                             
 footer[role="contentinfo"]{
   background-color: #fff;
   box-shadow: 0 5px 15px #000;

web_main/themes/custom/mathallo/assets/scss/partials/mixins.scss

@@ -0,0 +1,22 @@
+@mixin menu-contenus{
+  padding: 1em;
+  ul,li{
+    padding: 0;
+    margin:0;
+    list-style: none;
+  }
+  label{
+    color:$bleu_site;
+    font-weight: 600;
+    display: block;
+    font-size: 0.756em;
+    padding:0 0 0.25em 0;
+    &:has(+ a:hover){
+      color: $rose;
+    }
+  }
+  a{
+    font-size: 1.13em;
+  }
+  
+}

web_main/themes/custom/mathallo/mathallo.theme

@@ -37,7 +37,8 @@ function mathallo_preprocess_region(&$variables) {
 }
 
 
-function mathallo_preprocess_block__mathallo_contenu(&$variables) {
+// function mathallo_preprocess_block__mathallo_contenu(&$variables) {
+function mathallo_preprocess_block__menu_block__contenu(&$variables) {
   foreach ($variables['content']['#items'] as $key => $item) {
     parse_menu_item($variables['content']['#items'], $key);
   }
@@ -47,14 +48,20 @@ function parse_menu_item(&$items, $key){
   if ($items[$key]['url']->getRouteName() === "entity.node.canonical") {
     $nid = $items[$key]['url']->getRouteParameters()['node'];
     $node = \Drupal\node\Entity\Node::load($nid);
+    // create prefix (label) for chapitres
     if ($node->getType() === "chapitre") {
       $chapitre = $node->get('field_chapitre_num')->getValue()[0]['value'];
       $items[$key]['prefix'] = "Chapitre {$chapitre}";
     }
+    // create prefix (label) for parties
     if ($node->getType() === "partie") {
       $partie = $node->get('field_partie')->getValue()[0]['value'];
       $items[$key]['prefix'] = "Partie {$partie}";
     }
+    // add active attribute
+    if ($items[$key]['in_active_trail']){
+      $items[$key]['attributes']->offsetSet('class', 'in-active-trail');
+    }
   }
   if (count($items[$key]['below']) > 0) {
     foreach ($items[$key]['below'] as $key_b => $item_b) {

web_main/themes/custom/mathallo/templates/field--field-partie.html.twig

@@ -0,0 +1,64 @@
+{#
+/**
+ * @file
+ * Default theme implementation for a field.
+ *
+ * To override output, copy the "field.html.twig" from the templates directory
+ * to your theme's directory and customize it, just like customizing other
+ * Drupal templates such as page.html.twig or node.html.twig.
+ *
+ * Instead of overriding the theming for all fields, you can also just override
+ * theming for a subset of fields using
+ * @link themeable Theme hook suggestions. @endlink For example,
+ * here are some theme hook suggestions that can be used for a field_foo field
+ * on an article node type:
+ * - field--node--field-foo--article.html.twig
+ * - field--node--field-foo.html.twig
+ * - field--node--article.html.twig
+ * - field--field-foo.html.twig
+ * - field--text-with-summary.html.twig
+ * - field.html.twig
+ *
+ * Available variables:
+ * - attributes: HTML attributes for the containing element.
+ * - label_hidden: Whether to show the field label or not.
+ * - title_attributes: HTML attributes for the title.
+ * - label: The label for the field.
+ * - multiple: TRUE if a field can contain multiple items.
+ * - items: List of all the field items. Each item contains:
+ *   - attributes: List of HTML attributes for each item.
+ *   - content: The field item's content.
+ * - entity_type: The entity type to which the field belongs.
+ * - field_name: The name of the field.
+ * - field_type: The type of the field.
+ * - label_display: The display settings for the label.
+ *
+ * @see template_preprocess_field()
+ *
+ * @ingroup themeable
+ */
+#}
+{%
+  set title_classes = [
+    label_display == 'visually_hidden' ? 'visually-hidden',
+  ]
+%}
+
+{% if label_hidden %}
+  {% if multiple %}
+    <div{{ attributes }}>
+      {% for item in items %}
+        <div{{ item.attributes }}>{{ item.content }}</div>
+      {% endfor %}
+    </div>
+  {% else %}
+    {% for item in items %}
+      <div{{ attributes }}>{{ item.content }}</div>
+    {% endfor %}
+  {% endif %}
+{% else %}
+    <label>{{ label }}</label>
+    {% for item in items %}
+      <div{{ item.attributes }}>{{ item.content }}</div>
+    {% endfor %}
+{% endif %}

web_main/themes/custom/mathallo/templates/field--node--field-parties--chapitre.html.twig

@@ -0,0 +1,45 @@
+{#
+/**
+ * @file
+ * Default theme implementation for a field.
+ *
+ * To override output, copy the "field.html.twig" from the templates directory
+ * to your theme's directory and customize it, just like customizing other
+ * Drupal templates such as page.html.twig or node.html.twig.
+ *
+ * Instead of overriding the theming for all fields, you can also just override
+ * theming for a subset of fields using
+ * @link themeable Theme hook suggestions. @endlink For example,
+ * here are some theme hook suggestions that can be used for a field_foo field
+ * on an article node type:
+ * - field--node--field-foo--article.html.twig
+ * - field--node--field-foo.html.twig
+ * - field--node--article.html.twig
+ * - field--field-foo.html.twig
+ * - field--text-with-summary.html.twig
+ * - field.html.twig
+ *
+ * Available variables:
+ * - attributes: HTML attributes for the containing element.
+ * - label_hidden: Whether to show the field label or not.
+ * - title_attributes: HTML attributes for the title.
+ * - label: The label for the field.
+ * - multiple: TRUE if a field can contain multiple items.
+ * - items: List of all the field items. Each item contains:
+ *   - attributes: List of HTML attributes for each item.
+ *   - content: The field item's content.
+ * - entity_type: The entity type to which the field belongs.
+ * - field_name: The name of the field.
+ * - field_type: The type of the field.
+ * - label_display: The display settings for the label.
+ *
+ * @see template_preprocess_field()
+ *
+ * @ingroup themeable
+ */
+#}
+
+
+{% for item in items %}
+  <div{{ item.attributes }}>{{ item.content }}</div>
+{% endfor %}

web_main/themes/custom/mathallo/templates/menu.html.twig

@@ -38,10 +38,12 @@
     {% endif %}
     {% for item in items %}
       <li{{ item.attributes }}>
-        {% if item.prefix %}
+        <div class="wrapper">
-          <label class="link-prefix">{{ item.prefix }}</label>
+          {% if item.prefix %}
-        {% endif %}
+            <label class="link-prefix">{{ item.prefix }}</label>
-        {{ link(item.title, item.url) }}
+          {% endif %}
+          {{ link(item.title, item.url) }}
+        </div>
         {% if item.below %}
           {{ menus.menu_links(item.below, attributes, menu_level + 1) }}
         {% endif %}

web_main/themes/custom/mathallo/templates/node--chapitre.html.twig

@@ -0,0 +1,85 @@
+{#
+/**
+ * @file
+ * Default theme implementation to display a node.
+ *
+ * Available variables:
+ * - node: The node entity with limited access to object properties and methods.
+ *   Only method names starting with "get", "has", or "is" and a few common
+ *   methods such as "id", "label", and "bundle" are available. For example:
+ *   - node.getCreatedTime() will return the node creation timestamp.
+ *   - node.hasField('field_example') returns TRUE if the node bundle includes
+ *     field_example. (This does not indicate the presence of a value in this
+ *     field.)
+ *   - node.isPublished() will return whether the node is published or not.
+ *   Calling other methods, such as node.delete(), will result in an exception.
+ *   See \Drupal\node\Entity\Node for a full list of public properties and
+ *   methods for the node object.
+ * - label: (optional) The title of the node.
+ * - content: All node items. Use {{ content }} to print them all,
+ *   or print a subset such as {{ content.field_example }}. Use
+ *   {{ content|without('field_example') }} to temporarily suppress the printing
+ *   of a given child element.
+ * - author_picture: The node author user entity, rendered using the "compact"
+ *   view mode.
+ * - metadata: Metadata for this node.
+ * - date: (optional) Themed creation date field.
+ * - author_name: (optional) Themed author name field.
+ * - url: Direct URL of the current node.
+ * - display_submitted: Whether submission information should be displayed.
+ * - attributes: HTML attributes for the containing element.
+ *   The attributes.class element may contain one or more of the following
+ *   classes:
+ *   - node: The current template type (also known as a "theming hook").
+ *   - node--type-[type]: The current node type. For example, if the node is an
+ *     "Article" it would result in "node--type-article". Note that the machine
+ *     name will often be in a short form of the human readable label.
+ *   - node--view-mode-[view_mode]: The View Mode of the node; for example, a
+ *     teaser would result in: "node--view-mode-teaser", and
+ *     full: "node--view-mode-full".
+ *   The following are controlled through the node publishing options.
+ *   - node--promoted: Appears on nodes promoted to the front page.
+ *   - node--sticky: Appears on nodes ordered above other non-sticky nodes in
+ *     teaser listings.
+ *   - node--unpublished: Appears on unpublished nodes visible only to site
+ *     admins.
+ * - title_attributes: Same as attributes, except applied to the main title
+ *   tag that appears in the template.
+ * - content_attributes: Same as attributes, except applied to the main
+ *   content tag that appears in the template.
+ * - author_attributes: Same as attributes, except applied to the author of
+ *   the node tag that appears in the template.
+ * - title_prefix: Additional output populated by modules, intended to be
+ *   displayed in front of the main title tag that appears in the template.
+ * - title_suffix: Additional output populated by modules, intended to be
+ *   displayed after the main title tag that appears in the template.
+ * - view_mode: View mode; for example, "teaser" or "full".
+ * - teaser: Flag for the teaser state. Will be true if view_mode is 'teaser'.
+ * - page: Flag for the full page state. Will be true if view_mode is 'full'.
+ *
+ * @see template_preprocess_node()
+ *
+ * @ingroup themeable
+ */
+#}
+
+<article{{ attributes }}>
+  <div class="field-chapitre-num">
+    {{ content.field_chapitre_num }}
+  </div>
+  {{ title_prefix }}
+  {# {% if label and not page %} #}
+    <h2{{ title_attributes }}>
+      <a href="{{ url }}" rel="bookmark">{{ label }}</a>
+    </h2>
+  {# {% endif %} #}
+  {{ title_suffix }}
+
+  <div{{ content_attributes }}>
+    {{ content|without('field_chapitre_num','field_parties') }}
+  </div>
+
+</article>
+<section class="parties">
+  {{ content.field_parties }}
+<section>

web_main/themes/custom/mathallo/templates/node--partie.html.twig

@@ -0,0 +1,82 @@
+{#
+/**
+ * @file
+ * Default theme implementation to display a node.
+ *
+ * Available variables:
+ * - node: The node entity with limited access to object properties and methods.
+ *   Only method names starting with "get", "has", or "is" and a few common
+ *   methods such as "id", "label", and "bundle" are available. For example:
+ *   - node.getCreatedTime() will return the node creation timestamp.
+ *   - node.hasField('field_example') returns TRUE if the node bundle includes
+ *     field_example. (This does not indicate the presence of a value in this
+ *     field.)
+ *   - node.isPublished() will return whether the node is published or not.
+ *   Calling other methods, such as node.delete(), will result in an exception.
+ *   See \Drupal\node\Entity\Node for a full list of public properties and
+ *   methods for the node object.
+ * - label: (optional) The title of the node.
+ * - content: All node items. Use {{ content }} to print them all,
+ *   or print a subset such as {{ content.field_example }}. Use
+ *   {{ content|without('field_example') }} to temporarily suppress the printing
+ *   of a given child element.
+ * - author_picture: The node author user entity, rendered using the "compact"
+ *   view mode.
+ * - metadata: Metadata for this node.
+ * - date: (optional) Themed creation date field.
+ * - author_name: (optional) Themed author name field.
+ * - url: Direct URL of the current node.
+ * - display_submitted: Whether submission information should be displayed.
+ * - attributes: HTML attributes for the containing element.
+ *   The attributes.class element may contain one or more of the following
+ *   classes:
+ *   - node: The current template type (also known as a "theming hook").
+ *   - node--type-[type]: The current node type. For example, if the node is an
+ *     "Article" it would result in "node--type-article". Note that the machine
+ *     name will often be in a short form of the human readable label.
+ *   - node--view-mode-[view_mode]: The View Mode of the node; for example, a
+ *     teaser would result in: "node--view-mode-teaser", and
+ *     full: "node--view-mode-full".
+ *   The following are controlled through the node publishing options.
+ *   - node--promoted: Appears on nodes promoted to the front page.
+ *   - node--sticky: Appears on nodes ordered above other non-sticky nodes in
+ *     teaser listings.
+ *   - node--unpublished: Appears on unpublished nodes visible only to site
+ *     admins.
+ * - title_attributes: Same as attributes, except applied to the main title
+ *   tag that appears in the template.
+ * - content_attributes: Same as attributes, except applied to the main
+ *   content tag that appears in the template.
+ * - author_attributes: Same as attributes, except applied to the author of
+ *   the node tag that appears in the template.
+ * - title_prefix: Additional output populated by modules, intended to be
+ *   displayed in front of the main title tag that appears in the template.
+ * - title_suffix: Additional output populated by modules, intended to be
+ *   displayed after the main title tag that appears in the template.
+ * - view_mode: View mode; for example, "teaser" or "full".
+ * - teaser: Flag for the teaser state. Will be true if view_mode is 'teaser'.
+ * - page: Flag for the full page state. Will be true if view_mode is 'full'.
+ *
+ * @see template_preprocess_node()
+ *
+ * @ingroup themeable
+ */
+#}
+
+<article{{ attributes }}>
+  <div class="field-partie-num">
+    {{ content.field_partie }}
+  </div>
+  {{ title_prefix }}
+  {% if label and not page %}
+    <h2{{ title_attributes }}>
+      <a href="{{ url }}" rel="bookmark">{{ label }}</a>
+    </h2>
+  {% endif %}
+  {{ title_suffix }}
+
+  <div{{ content_attributes }}>
+    {{ content|without('field_partie') }}
+  </div>
+
+</article>

web_main/themes/custom/mathallo/templates/node.html.twig

@@ -0,0 +1,89 @@
+{#
+/**
+ * @file
+ * Default theme implementation to display a node.
+ *
+ * Available variables:
+ * - node: The node entity with limited access to object properties and methods.
+ *   Only method names starting with "get", "has", or "is" and a few common
+ *   methods such as "id", "label", and "bundle" are available. For example:
+ *   - node.getCreatedTime() will return the node creation timestamp.
+ *   - node.hasField('field_example') returns TRUE if the node bundle includes
+ *     field_example. (This does not indicate the presence of a value in this
+ *     field.)
+ *   - node.isPublished() will return whether the node is published or not.
+ *   Calling other methods, such as node.delete(), will result in an exception.
+ *   See \Drupal\node\Entity\Node for a full list of public properties and
+ *   methods for the node object.
+ * - label: (optional) The title of the node.
+ * - content: All node items. Use {{ content }} to print them all,
+ *   or print a subset such as {{ content.field_example }}. Use
+ *   {{ content|without('field_example') }} to temporarily suppress the printing
+ *   of a given child element.
+ * - author_picture: The node author user entity, rendered using the "compact"
+ *   view mode.
+ * - metadata: Metadata for this node.
+ * - date: (optional) Themed creation date field.
+ * - author_name: (optional) Themed author name field.
+ * - url: Direct URL of the current node.
+ * - display_submitted: Whether submission information should be displayed.
+ * - attributes: HTML attributes for the containing element.
+ *   The attributes.class element may contain one or more of the following
+ *   classes:
+ *   - node: The current template type (also known as a "theming hook").
+ *   - node--type-[type]: The current node type. For example, if the node is an
+ *     "Article" it would result in "node--type-article". Note that the machine
+ *     name will often be in a short form of the human readable label.
+ *   - node--view-mode-[view_mode]: The View Mode of the node; for example, a
+ *     teaser would result in: "node--view-mode-teaser", and
+ *     full: "node--view-mode-full".
+ *   The following are controlled through the node publishing options.
+ *   - node--promoted: Appears on nodes promoted to the front page.
+ *   - node--sticky: Appears on nodes ordered above other non-sticky nodes in
+ *     teaser listings.
+ *   - node--unpublished: Appears on unpublished nodes visible only to site
+ *     admins.
+ * - title_attributes: Same as attributes, except applied to the main title
+ *   tag that appears in the template.
+ * - content_attributes: Same as attributes, except applied to the main
+ *   content tag that appears in the template.
+ * - author_attributes: Same as attributes, except applied to the author of
+ *   the node tag that appears in the template.
+ * - title_prefix: Additional output populated by modules, intended to be
+ *   displayed in front of the main title tag that appears in the template.
+ * - title_suffix: Additional output populated by modules, intended to be
+ *   displayed after the main title tag that appears in the template.
+ * - view_mode: View mode; for example, "teaser" or "full".
+ * - teaser: Flag for the teaser state. Will be true if view_mode is 'teaser'.
+ * - page: Flag for the full page state. Will be true if view_mode is 'full'.
+ *
+ * @see template_preprocess_node()
+ *
+ * @ingroup themeable
+ */
+#}
+<article{{ attributes }}>
+
+  {{ title_prefix }}
+  {% if label and not page %}
+    <h2{{ title_attributes }}>
+      <a href="{{ url }}" rel="bookmark">{{ label }}</a>
+    </h2>
+  {% endif %}
+  {{ title_suffix }}
+
+  {% if display_submitted %}
+    <footer>
+      {{ author_picture }}
+      <div{{ author_attributes }}>
+        {% trans %}Submitted by {{ author_name }} on {{ date }}{% endtrans %}
+        {{ metadata }}
+      </div>
+    </footer>
+  {% endif %}
+
+  <div{{ content_attributes }}>
+    {{ content }}
+  </div>
+
+</article>

web_main/themes/custom/mathallo/templates/page.html.twig

@@ -60,8 +60,10 @@
   {{ page.primary_menu }}
   {{ page.secondary_menu }}
 
+  <nav role="breadcrumb">
   {{ page.breadcrumb }}
-
+  </nav>
+  
   {{ page.highlighted }}
 
   {{ page.help }}

web_main/themes/custom/mathallo/templates/region--breadcrumb.html.twig

@@ -0,0 +1,21 @@
+{#
+/**
+ * @file
+ * Default theme implementation to display a region.
+ *
+ * Available variables:
+ * - content: The content for this region, typically blocks.
+ * - attributes: HTML attributes for the region <div>.
+ * - region: The name of the region variable as defined in the theme's
+ *   .info.yml file.
+ *
+ * @see template_preprocess_region()
+ *
+ * @ingroup themeable
+ */
+#}
+{% if content %}
+  <div{{ attributes }}>
+    {{ content }}
+  </div>
+{% endif %}