diff --git a/example/frameless/resources/index.html b/example/frameless/resources/index.html
index b7a39412e165f02db04e151962afb931f72178c7..2a7994e56a1bba7bae2ec45246dca4b5cb735ad6 100644
--- a/example/frameless/resources/index.html
+++ b/example/frameless/resources/index.html
@@ -60,7 +60,7 @@
         </el-aside>
 
         <el-container>
-            <el-header style="font-size: 12px;-webkit-app-region: drag;">
+            <el-header style="font-size: 12px;-webkit-app-region: drag; -webkit-user-select: none;">
                 <div style="width: 650px;float: left;-webkit-app-region: drag;">
                     <div style="float: left"><img src="icon.png" style="margin-top: 10px;-webkit-app-region: drag;" height="40"/></div>
                     <div style="font-size: 12px;font-weight: bold;">窗口标题栏 VUE + ElementUI <span style="color: green;-webkit-app-region: drag;">  {{osInfo}}</span>