diff --git a/core/modules/help/css/help.module.css b/core/modules/help/css/help.module.css
index 444e0cd..1994f96 100644
--- a/core/modules/help/css/help.module.css
+++ b/core/modules/help/css/help.module.css
@@ -2,20 +2,12 @@
 .help-items {
   float: left; /* LTR */
   width: 22%;
-  margin-right: 3%; /* LTR */
 }
 [dir="rtl"] .help-items {
   float: right;
   margin-right: 0;
   margin-left: 3%;
 }
-.help-items-last {
-  margin-right: 0; /* LTR */
-}
-[dir="rtl"] .help-items-last {
-  margin-right: 0;
-  margin-left: 0;
-}
 
 
 /**
diff --git a/core/modules/help/help.module b/core/modules/help/help.module
index 6d07405..98e6866 100644
--- a/core/modules/help/help.module
+++ b/core/modules/help/help.module
@@ -81,3 +81,40 @@ function help_preprocess_block(&$variables) {
     $variables['attributes']['role'] = 'complementary';
   }
 }
+
+/**
+ * Implements hook_theme().
+ */
+function help_theme() {
+  return array(
+    'help_list' => array(
+      'template' => 'help-list',
+      'variables' => array('links' => NULL),
+    ),
+  );
+}
+
+/**
+ * Prepares variables for help list templates.
+ *
+ * Default template: help-list.html.twig.
+ *
+ * @param array $variables
+ *   An associative array containing:
+ *   - links: A list of links to render.
+ */
+function template_preprocess_help_list(&$variables) {
+  $links = $variables['links'];
+  $count = count($links);
+  // Four-column list.
+  $limit = ceil($count / 4);
+  $chunk = array_chunk($links, $limit, TRUE);
+  $variables['rows'] = array();
+  foreach ($chunk as $list) {
+    $variables['rows'][] = array(
+      '#theme' => 'item_list__help',
+      '#items' => $list,
+      '#attributes' => array('class' => 'help-items'),
+    );
+  }
+}
diff --git a/core/modules/help/lib/Drupal/help/Controller/HelpController.php b/core/modules/help/lib/Drupal/help/Controller/HelpController.php
index 59cf945..2688d91 100644
--- a/core/modules/help/lib/Drupal/help/Controller/HelpController.php
+++ b/core/modules/help/lib/Drupal/help/Controller/HelpController.php
@@ -19,52 +19,29 @@ class HelpController extends ControllerBase {
   /**
    * Prints a page listing a glossary of Drupal terminology.
    *
-   * @return string
-   *   An HTML string representing the contents of help page.
+   * @return array
+   *   An array as expected by drupal_render().
    */
   public function helpMain() {
-    $output = array(
-      '#attached' => array(
-        'css' => array(drupal_get_path('module', 'help') . '/css/help.module.css'),
-      ),
-      '#markup' => '<h2>' . $this->t('Help topics') . '</h2><p>' . $this->t('Help is available on the following items:') . '</p>' . $this->helpLinksAsList(),
-    );
-    return $output;
-  }
-
-  /**
-   * Provides a formatted list of available help topics.
-   *
-   * @return string
-   *   A string containing the formatted list.
-   */
-  protected function helpLinksAsList() {
     $empty_arg = drupal_help_arg();
     $module_info = system_rebuild_module_data();
 
     $modules = array();
     foreach ($this->moduleHandler()->getImplementations('help') as $module) {
       if ($this->moduleHandler()->invoke($module, 'help', array("admin/help#$module", $empty_arg))) {
-        $modules[$module] = $module_info[$module]->info['name'];
+        $name = $module_info[$module]->info['name'];
+        $modules[$module] = $this->l($name, 'help.page', array('name' => $module));
       }
     }
     asort($modules);
 
-    // Output pretty four-column list.
-    $count = count($modules);
-    $break = ceil($count / 4);
-    $output = '<div class="clearfix"><div class="help-items"><ul>';
-    $i = 0;
-    foreach ($modules as $module => $name) {
-      $output .= '<li>' . $this->l($name, 'help.page',  array('name' => $module)) . '</li>';
-      if (($i + 1) % $break == 0 && ($i + 1) != $count) {
-        $output .= '</ul></div><div class="help-items' . ($i + 1 == $break * 3 ? ' help-items-last' : '') . '"><ul>';
-      }
-      $i++;
-    }
-    $output .= '</ul></div></div>';
-
-    return $output;
+    return array(
+      '#theme' => 'help_list',
+      '#links' => $modules,
+      '#attached' => array(
+        'css' => array(drupal_get_path('module', 'help') . '/css/help.module.css'),
+      ),
+    );
   }
 
   /**
diff --git a/core/modules/help/lib/Drupal/help/Tests/HelpTest.php b/core/modules/help/lib/Drupal/help/Tests/HelpTest.php
index dd21f0e..f0f9ec7 100644
--- a/core/modules/help/lib/Drupal/help/Tests/HelpTest.php
+++ b/core/modules/help/lib/Drupal/help/Tests/HelpTest.php
@@ -73,7 +73,8 @@ public function testHelp() {
     $this->assertRaw(t('For more information, refer to the subjects listed in the Help Topics section or to the <a href="!docs">online documentation</a> and <a href="!support">support</a> pages at <a href="!drupal">drupal.org</a>.', array('!docs' => 'https://drupal.org/documentation', '!support' => 'https://drupal.org/support', '!drupal' => 'https://drupal.org')), 'Help intro text correctly appears.');
 
     // Verify that help topics text appears.
-    $this->assertRaw('<h2>' . t('Help topics') . '</h2><p>' . t('Help is available on the following items:') . '</p>', 'Help topics text correctly appears.');
+    $this->assertRaw('<h2>' . t('Help topics') . '</h2>', 'Help page heading correctly appears.');
+    $this->assertRaw('<p>' . t('Help is available on the following items:') . '</p>', 'Help topics text correctly appears.');
 
     // Make sure links are properly added for modules implementing hook_help().
     foreach ($this->getModuleList() as $module => $name) {
diff --git a/core/modules/help/templates/help-list.html.twig b/core/modules/help/templates/help-list.html.twig
new file mode 100644
index 0000000..691a5309
--- /dev/null
+++ b/core/modules/help/templates/help-list.html.twig
@@ -0,0 +1,18 @@
+{#
+/**
+ * @file
+ * Default theme implementation to present a list of help items.
+ *
+ * Available variables:
+ * - rows: An array containing list of links to render.
+ *
+ * @ingroup themeable
+ */
+#}
+<h2>{{ 'Help topics'|t }}</h2>
+<p>{{ 'Help is available on the following items:'|t }}</p>
+<div class="clearfix">
+  {% for list in rows %}
+    {{ list }}
+  {% endfor %}
+</div>