diff --git a/index.html b/index.html
index a35fc44..a8d5501 100644
--- a/index.html
+++ b/index.html
@@ -9,7 +9,7 @@
     <script src="./marked.v4.3.0.min.js"></script>
     <script src="./bootstrap-5.0.2-dist/bootstrap.min.js"></script>
     <link rel="stylesheet" type="text/css" href="./highlight/styles/default.min.css">
-    <link rel="stylesheet" type="text/css" href="./highlight/styles/vs.min.css">
+    <link rel="stylesheet" type="text/css" href="./highlight/styles/xcode.min.css">
     <title>lmj01 document</title>
   </head>
   <body class="mj-body">
