diff --git a/widgets/Alert.php b/widgets/Alert.php
index ae6c1d85c..267a5dd52 100644
--- a/widgets/Alert.php
+++ b/widgets/Alert.php
@@ -30,6 +30,7 @@ class Alert extends \yii\bootstrap\Widget
      * - key: the name of the session flash variable
      * - value: the bootstrap alert type (i.e. danger, success, info, warning)
      */
+
     public $alertTypes = [
         'error'   => 'alert-danger',
         'danger'  => 'alert-danger',
@@ -37,6 +38,7 @@ class Alert extends \yii\bootstrap\Widget
         'info'    => 'alert-info',
         'warning' => 'alert-warning'
     ];
+    
     /**
      * @var array the options for rendering the close button tag.
      * Array will be passed to [[\yii\bootstrap\Alert::closeButton]].