.card {
       border: 1px solid #ddd;
       border-radius: 10px;
       box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
       margin-top: 50px;
       margin-bottom: 50px;
       padding: 20px;
   }

   .card-header {
       background-color: #f8f9fa;
       border-bottom: 1px solid #ddd;
       border-radius: 10px 10px 0 0;
       padding: 10px 20px;
   }

   .card-body {
       padding: 20px;
   }

   .btn-primary {
       background-color: #007bff;
       border-color: #007bff;
       border-radius: 5px;
       padding: 10px 20px;
   }
   #register_btn{
    width: 100%;
   }