body {
   font-family: Arial, sans-serif;
   background-color: #f4f4f4;
   text-align: center;
   /* padding: 20px; */
}
h1 {
   color: #333;
}
button {
   padding: 10px 20px;
   background-color: #007BFF;
   color: white;
   border: none;
   border-radius: 5px;
   cursor: pointer;
}
button:hover {
   background-color: #0056b3;
}