diff --git a/core/modules/views/templates/views-view-fields.html.twig b/core/modules/views/templates/views-view-fields.html.twig
index 03f97be..38525c7 100644
--- a/core/modules/views/templates/views-view-fields.html.twig
+++ b/core/modules/views/templates/views-view-fields.html.twig
@@ -26,6 +26,12 @@
  * @ingroup themeable
  */
 #}
+<!--
+THIS FILE IS NOT USED AND IS HERE AS A STARTING POINT FOR CUSTOMIZATION ONLY.
+See http://api.drupal.org/api/function/theme_views_view_fields/8 for details.
+After copying this file to your theme's folder and customizing it, remove this
+HTML comment.
+-->
 {% for field in fields %}
   {{ field.separator }}
 
diff --git a/core/modules/views/views.theme.inc b/core/modules/views/views.theme.inc
index e1b1eb7..7e5fcd5 100644
--- a/core/modules/views/views.theme.inc
+++ b/core/modules/views/views.theme.inc
@@ -312,6 +312,38 @@ function template_preprocess_views_view_fields(&$vars) {
 }
 
 /**
+ * Returns HTML for multiple views fields.
+ *
+ * @param $variables
+ *   An associative array containing:
+ *   - separator: A string that separates the fields.
+ *   - wrapper_suffix: A string added to the beginning of the fields.
+ *   - label_html: An HTML string that labels the fields.
+ *   - content: The fields.
+ *   - wrapper_suffix: A string added to the end of the fields.
+ *
+ * @see template_preprocess_views_view_fields()
+ */
+function theme_views_view_fields($vars) {
+  $fields = $vars['fields'];
+  $output = '';
+
+  foreach ($fields as $id => $field) {
+    if (!empty($field->separator)) {
+      $output .= $field->separator;
+    }
+
+    $output .= $field->wrapper_prefix;
+    $output .= $field->label_html;
+    $output .= $field->content;
+
+    $output .= $field->wrapper_suffix;
+  }
+
+  return $output;
+}
+
+/**
  * Process a single grouping within a view.
  */
 function template_preprocess_views_view_grouping(&$vars) {