diff --git a/page-codeVideo.html b/page-codeVideo.html
index 4aa0566..1d9b5ea 100644
--- a/page-codeVideo.html
+++ b/page-codeVideo.html
@@ -39,9 +39,7 @@
       </div>
       <div class="perview-video">
         <div class="video-content">
-          <video id="myPageVideo" width="592" height="360" controls autoplay>
-            <source src="media/video/elephant/ROS桌面多功能机械臂myCobot_280_Pi颜色识别分类.mp4" type="video/mp4">
-          </video>
+          <video width="592" height="360" src="media/video/elephant/ROS桌面多功能机械臂myCobot_280_Pi颜色识别分类.mp4" autoplay="autoplay" loop="loop" muted="muted"></video>
         </div>
         <ul class="perview-info">
           <li>
diff --git a/page-pdfVideo.html b/page-pdfVideo.html
index f39aceb..cc3caba 100644
--- a/page-pdfVideo.html
+++ b/page-pdfVideo.html
@@ -40,9 +40,7 @@
       </div>
       <div class="perview-video">
         <div class="video-content">
-          <video width="592" height="360" controls autoplay>
-            <source src="media/video/elephant/重磅！大象机器人发布第二代人工智能套装，深度学习协作机器人、先进机器视觉与应用场景，人工智能实验室与职业教育必备.mp4" type="video/mp4">
-          </video>
+          <video width="592" height="360" src="media/video/elephant/重磅！大象机器人发布第二代人工智能套装，深度学习协作机器人、先进机器视觉与应用场景，人工智能实验室与职业教育必备.mp4" autoplay="autoplay" loop="loop" muted="muted"></video>
         </div>
         <!-- <ul class="perview-info">
           <li>
diff --git a/page4.html b/page4.html
index 5214e52..ac29778 100644
--- a/page4.html
+++ b/page4.html
@@ -54,8 +54,8 @@
                   <img src="images/img-bg.png" alt="" />
                   <span></span>
                 </div>
-                <p>地址错误 - 全国青少年人工智能创新挑战赛</p>
-                <input type="hidden" value="media/video/elephant/入门级开源机械臂ultraArm套装2.mp4" />
+                <p>全国青少年人工智能创新挑战赛</p>
+                <input type="hidden" value="media/video/elephant/入门级开源机械臂ultraArm套装.mp4" />
               </a>
             </li>
             <li>