diff --git a/BlazorStudy.Bootstrap5Study/wwwroot/index.html b/BlazorStudy.Bootstrap5Study/wwwroot/index.html
index 0ec15e4..77f5645 100644
--- a/BlazorStudy.Bootstrap5Study/wwwroot/index.html
+++ b/BlazorStudy.Bootstrap5Study/wwwroot/index.html
@@ -9,6 +9,11 @@
     <link rel="icon" type="image/png" href="favicon.png" />
     <link rel="stylesheet" href="bootstrap/css/bootstrap.min.css"  />
     <link rel="stylesheet" href="css/app.css" />
+    <style>
+        .container .card {
+           width:300px;
+        }
+    </style>
 </head>
 
 <body>
