diff --git a/application/views/mobile_first/ch.php b/application/views/mobile_first/ch.php
index bd82f812..de26cb81 100644
--- a/application/views/mobile_first/ch.php
+++ b/application/views/mobile_first/ch.php
@@ -27,8 +27,8 @@
 <!-- End Google Tag Manager (noscript) -->
 
 <!--头部导航-->
-<header class="headerbar  flex justify-start items-center top-0 left-0 right-0 pl2 pr4 pt2 md-pt0" id="header">
-    <div role=button tabindex=0 style="height: 53px;">
+<header class="headerbar" id="header">
+    <div role="button" tabindex="0" class="topnavibutton">
         <a href="/"> <img src="https://data.chinahighlights.com/pic/logo/china-highlights-top-navigation-logo.png" width="98" height="53" alt="chinahighlights logo" class="chinahighlightslogo img-responsive"></a>
         <div class="topnavitailor">
             <a href="/contactus/" class="infocustomize">Contact Us <i aria-hidden="true"