diff --git a/packages/react/index.html b/packages/react/index.html
index 534baac..9b1a863 100644
--- a/packages/react/index.html
+++ b/packages/react/index.html
@@ -3,6 +3,7 @@
   <head>
     <meta charset="UTF-8" />
     <meta name="viewport" content="width=device-width, initial-scale=1.0" />
+    <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/highlight.js/11.8.0/styles/github-dark.min.css">
     <title>PSW/UI</title>
   </head>
   <body>
