diff --git a/application/views/mobile_first/ch-pc.php b/application/views/mobile_first/ch-pc.php
index d07cd223..446c1f21 100644
--- a/application/views/mobile_first/ch-pc.php
+++ b/application/views/mobile_first/ch-pc.php
@@ -433,9 +433,9 @@
                     <div class="bottomaboutus">
                         <img src="https://data.chinahighlights.com/grey.gif" loader="lazy" originalsrc="https://data.chinahighlights.com/pic/logo/bottom-logo-b.png" width="170"
                             height="121"
-                            style="float: left; margin-right: 10px; margin-bottom: 10px; width: 170px; height: 121px;" />
+                            style="float: left; margin-right: 10px; margin-bottom: 10px; width: 170px; height: 121px;" alt="China Highlights logo"/>
                         <div class="aboutusinfo">
-                            <img src="https://data.chinahighlights.com/grey.gif" loader="lazy" originalsrc="https://data.chinahighlights.com/image/aboutus/feedback/five-star.png" style="display: block; margin-bottom: 10px;">
+                            <img src="https://data.chinahighlights.com/grey.gif" loader="lazy" originalsrc="https://data.chinahighlights.com/image/aboutus/feedback/five-star.png" style="display: block; margin-bottom: 10px;" alt="Trip Advisor rating">
                             Rated 5 out of 5 | 98.8% Excellence<br>
                             China Highlights International<br> Travel Service Co., LTD
                         </div>
@@ -514,7 +514,7 @@
     </div>
     <div class="bottomlogo">
         <div class="list_content">
-            <img src="https://data.chinahighlights.com/grey.gif" loader="lazy" originalsrc="https://data.chinahighlights.com/pic/guide/info-template-bottom-logo.jpg" width="114" height="71"
+            <img src="https://data.chinahighlights.com/grey.gif" loader="lazy" originalsrc="https://data.chinahighlights.com/pic/guide/info-template-bottom-logo.jpg" width="114" height="71" alt="China Highlights logo"
                 class="img-responsive bottomlogopc"><span class="bottomcopyright">© 1998-2024 China Highlights — Discovery Your Way! </span>
         </div>
     </div>
diff --git a/application/views/mobile_first/ch.php b/application/views/mobile_first/ch.php
index 27709f33..c3013c5d 100644
--- a/application/views/mobile_first/ch.php
+++ b/application/views/mobile_first/ch.php
@@ -58,7 +58,7 @@
   <!--头部导航-->
   <header class="headerbar" id="header">
     <div role="button" class="topnavibutton">
-      <img src="https://data.chinahighlights.com/image/tour-detail/icon/top-navigation-menu-button.jpg" class="navimenu topnaviarrowdown action--open" width="26px" height="25px" style="position: relative; left: 10px; top: 12px; z-index: 9;">
+      <img src="https://data.chinahighlights.com/image/tour-detail/icon/top-navigation-menu-button.jpg" class="navimenu topnaviarrowdown action--open" width="26px" height="25px" style="position: relative; left: 10px; top: 12px; z-index: 9;" alt="menu button">
       <a href="/" style="width: 100%;
     display: inline-block;
     position: relative;
@@ -457,7 +457,7 @@
     <div class="infobottom">
       <img src="https://data.chinahighlights.com/grey.gif" loader="lazy" originalsrc="https://data.chinahighlights.com/pic/logo/bottom-logo-b.png" alt="China Highlights Logo"
           width="152px" height="108" class="bottomlogocenter">
-          <img src="https://data.chinahighlights.com/grey.gif" loader="lazy" originalsrc="https://data.chinahighlights.com/image/aboutus/feedback/five-star.png" style="display: block; margin: 10px auto;">
+          <img src="https://data.chinahighlights.com/grey.gif" loader="lazy" originalsrc="https://data.chinahighlights.com/image/aboutus/feedback/five-star.png" style="display: block; margin: 10px auto;" alt="Trip Advisor rating">
       <div class="bottomlogoinfo">Rated 5 out of 5 | 98.8% Excellence<br>
 China Highlights International<br>
 Travel Service Co., LTD
@@ -532,7 +532,7 @@ Travel Service Co., LTD
 
       <div class="featureon">
           <span class="followtitle">Featured on</span>
-          <a href="/aboutus/who-recommended.htm"> <img src="https://data.chinahighlights.com/grey.gif" loader="lazy" originalsrc="https://data.chinahighlights.com/pic/guide/info-template-feature-on.png" alt="feature on"
+          <a href="/aboutus/who-recommended.htm"> <img src="https://data.chinahighlights.com/grey.gif" loader="lazy" originalsrc="https://data.chinahighlights.com/pic/guide/info-template-feature-on.png" alt="China Higlights is recommended by this social medias."
               class="img-responsive" width="436px" height="250px"></a>
 
       </div>