diff --git a/app/index.html b/app/index.html
index 4fb4979..4faaedd 100644
--- a/app/index.html
+++ b/app/index.html
@@ -5,6 +5,7 @@
     <meta charset="utf-8" />
     <title>LLDAP Administration</title>
     <script src="/pkg/bundle.js" defer></script>
+    <link href="https://cdn.jsdelivr.net/npm/bootstrap@5.0.1/dist/css/bootstrap.min.css" rel="preload stylesheet" integrity="sha384-+0n0xVW2eSR5OomGNYDnhzAbDsOXxcvSN1TPprVMTNDbiYZCxYbOOl7+AMvyTG2x" crossorigin="anonymous" as="style" />
 </head>
 
 <body>
