diff --git a/public/500.html b/public/500.html
index 4837570ad..32df573f6 100644
--- a/public/500.html
+++ b/public/500.html
@@ -1,66 +1,61 @@
-<!DOCTYPE html>
+<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
+        "http://www.w3.org/TR/html4/loose.dtd">
 <html>
 <head>
-  <title>We're sorry, but something went wrong (500)</title>
-  <meta name="viewport" content="width=device-width,initial-scale=1">
-  <style>
-  .rails-default-error-page {
-    background-color: #EFEFEF;
-    color: #2E2F30;
-    text-align: center;
-    font-family: arial, sans-serif;
-    margin: 0;
-  }
+  <title>EduCoder 500 error</title>
+  <link type="text/css" rel="stylesheet" href="/stylesheets/educoder/edu-main.css" />
+  <link href="//at.alicdn.com/t/font_653600_rr8l5v2aaym.css" rel="stylesheet" type="text/css"/>
+  <script src="/javascripts/jquery-1.8.3-ui-1.9.2-ujs-2.0.3.js"></script>
 
-  .rails-default-error-page div.dialog {
-    width: 95%;
-    max-width: 33em;
-    margin: 4em auto 0;
-  }
-
-  .rails-default-error-page div.dialog > div {
-    border: 1px solid #CCC;
-    border-right-color: #999;
-    border-left-color: #999;
-    border-bottom-color: #BBB;
-    border-top: #B00100 solid 4px;
-    border-top-left-radius: 9px;
-    border-top-right-radius: 9px;
-    background-color: white;
-    padding: 7px 12% 0;
-    box-shadow: 0 3px 8px rgba(50, 50, 50, 0.17);
-  }
-
-  .rails-default-error-page h1 {
-    font-size: 100%;
-    color: #730E15;
-    line-height: 1.5em;
-  }
-
-  .rails-default-error-page div.dialog > p {
-    margin: 0 0 1em;
-    padding: 1em;
-    background-color: #F7F7F7;
-    border: 1px solid #CCC;
-    border-right-color: #999;
-    border-left-color: #999;
-    border-bottom-color: #999;
-    border-bottom-left-radius: 4px;
-    border-bottom-right-radius: 4px;
-    border-top-color: #DADADA;
-    color: #666;
-    box-shadow: 0 3px 8px rgba(50, 50, 50, 0.17);
-  }
+  <style type="text/css">
+    body {
+      font-family: "微软雅黑","宋体";
+      background: #fff;
+    }
+    h1 {
+      font-size: 1.5em;
+    }
+    p {
+      font-size: 0.8em;
+    }
+    .h_content{
+      text-align: center;
+      padding-top: 15px;
+    }
+    .font_h{
+      font-size: 24px;
+      color: #ff0077;
+    }
+    .verticalCenter{
+      height: 100%;
+      justify-content: center;
+      align-items: center;
+      display: -webkit-flex;
+    }
   </style>
+  <script type="text/javascript">
+    $(function(){
+      if(window.history.length == 1)
+      {
+        $("#history_back").css("color","#CCC");
+        $("#history_back").css("cursor","default");
+      }
+    });
+  </script>
 </head>
-
-<body class="rails-default-error-page">
-  <!-- This file lives in public/500.html -->
-  <div class="dialog">
-    <div>
-      <h1>We're sorry, but something went wrong.</h1>
-    </div>
-    <p>If you are the application owner check the logs for more information.</p>
+<body>
+<!-- <h1>Internal error</h1>
+<p>An error occurred on the page you were trying to access.<br />
+If you continue to experience problems please contact your Trustie administrator for assistance.</p>
+<p>If you are the Trustie administrator, check your log files for details about the error.</p> -->
+<div class="verticalCenter">
+  <div class="edu-txt-center">
+    <img src="/images/warn/pic_500.jpg" >
+    <p class="font-18 mt40">您可以稍后尝试&nbsp;
+      您可以稍后尝试&nbsp;<a href="javascript:history.back()" class="color-blue">返回上页</a>，或者&nbsp;
+      <a target="_blank" href="//shang.qq.com/wpa/qunwpa?idkey=2f2043d88c1bd61d182b98bf1e061c6185e23055bec832c07d8148fe11c5a6cd" class="color-blue">QQ反馈>></a>
+    </p>
   </div>
+</div>
 </body>
 </html>
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