diff --git a/application/views/mobile_first/ch.php b/application/views/mobile_first/ch.php
index 2a8f2afc..4ddf6024 100644
--- a/application/views/mobile_first/ch.php
+++ b/application/views/mobile_first/ch.php
@@ -35,7 +35,7 @@
 
 <!--头部导航-->
 <header class="headerbar" id="header">
-    <div role="button" tabindex="0" class="topnavibutton">
+    <div role="button" 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 </a>