{% endif %}
{% if site_slogan %}
diff --git a/web/themes/custom/opdavies/templates/block/block--system-menu-block.html.twig b/web/themes/custom/opdavies/templates/block/block--system-menu-block.html.twig
new file mode 100644
index 000000000..7664a9828
--- /dev/null
+++ b/web/themes/custom/opdavies/templates/block/block--system-menu-block.html.twig
@@ -0,0 +1,52 @@
+{#
+/**
+ * @file
+ * Theme override for a menu block.
+ *
+ * Available variables:
+ * - plugin_id: The ID of the block implementation.
+ * - label: The configured label of the block if visible.
+ * - configuration: A list of the block's configuration values.
+ * - label: The configured label for the block.
+ * - label_display: The display settings for the label.
+ * - provider: The module or other provider that provided this block plugin.
+ * - Block plugin specific settings will also be stored here.
+ * - content: The content of this block.
+ * - attributes: HTML attributes for the containing element.
+ * - id: A valid HTML ID and guaranteed unique.
+ * - title_attributes: HTML attributes for the title element.
+ * - content_attributes: HTML attributes for the content element.
+ * - 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.
+ *
+ * Headings should be used on navigation menus that consistently appear on
+ * multiple pages. When this menu block's label is configured to not be
+ * displayed, it is automatically made invisible using the 'visually-hidden' CSS
+ * class, which still keeps it visible for screen-readers and assistive
+ * technology. Headings allow screen-reader and keyboard only users to navigate
+ * to or skip the links.
+ * See http://juicystudio.com/article/screen-readers-display-none.php and
+ * http://www.w3.org/TR/WCAG-TECHS/H42.html for more information.
+ */
+#}
+{% set heading_id = attributes.id ~ '-menu'|clean_id %}
+
diff --git a/web/themes/custom/opdavies/templates/layout/page.html.twig b/web/themes/custom/opdavies/templates/layout/page.html.twig
index c007d7154..fa2ad7a86 100644
--- a/web/themes/custom/opdavies/templates/layout/page.html.twig
+++ b/web/themes/custom/opdavies/templates/layout/page.html.twig
@@ -45,47 +45,77 @@
* @ingroup themeable
*/
#}
-
diff --git a/web/themes/custom/opdavies/templates/menu/menu--main.html.twig b/web/themes/custom/opdavies/templates/menu/menu--main.html.twig
new file mode 100644
index 000000000..8e047e33e
--- /dev/null
+++ b/web/themes/custom/opdavies/templates/menu/menu--main.html.twig
@@ -0,0 +1,58 @@
+{#
+/**
+ * @file
+ * Theme override to display a menu.
+ *
+ * Available variables:
+ * - menu_name: The machine name of the menu.
+ * - items: A nested list of menu items. Each menu item contains:
+ * - attributes: HTML attributes for the menu item.
+ * - below: The menu item child items.
+ * - title: The menu link title.
+ * - url: The menu link url, instance of \Drupal\Core\Url
+ * - localized_options: Menu link localized options.
+ * - is_expanded: TRUE if the link has visible children within the current
+ * menu tree.
+ * - is_collapsed: TRUE if the link has children within the current menu tree
+ * that are not currently visible.
+ * - in_active_trail: TRUE if the link is in the active trail.
+ */
+#}
+{% import _self as menus %}
+
+{#
+ We call a macro which calls itself to render the full tree.
+ @see https://twig.symfony.com/doc/1.x/tags/macro.html
+#}
+{{ menus.menu_links(items, attributes, 0) }}
+
+{% macro menu_links(items, attributes, menu_level) %}
+ {% import _self as menus %}
+
+ {% if items %}
+