diff --git a/app/assets/javascripts/admins/shixun_feedback_messages/index.js b/app/assets/javascripts/admins/shixun_feedback_messages/index.js
index af2484d8f..c25a6b744 100644
--- a/app/assets/javascripts/admins/shixun_feedback_messages/index.js
+++ b/app/assets/javascripts/admins/shixun_feedback_messages/index.js
@@ -1,7 +1,7 @@
 $(document).on('turbolinks:load', function(){
     if ($('body.admins-shixun-feedback-messages-index-page').length > 0) {
 
-        $(".content-img img").addClass("w-100").addClass("preview-image");
+        $(".content-img img").addClass("w-20").addClass("preview-image");
 
         var baseOptions = {
             autoclose: true,