Revert "Update yu.html"

This reverts commit 168acb8.

Author: vectorZeng

more/content/yu.html

@@ -353,8 +353,9 @@
   </div>
   <div style="text-align: center; margin-top: 20px;">
       <button onclick="logout()" class="logout-btn">返回</button>
-</div>
-
+    </div
+    <button onclick="logout()" class="logout-btn">返回</button>
+  </div>
 </div>
 
 <style>