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>