To add information to a card in Bootstrap 4, use the bg-info class.
Use the card class with the bg-info class:
<div class="card bg-info">
Add the card body after that using the card-body class −
<div class="card-body"> Demo Text </div>
You can try to run the following code to add information −
<!DOCTYPE html> <html lang="en"> <head> <title>Bootstrap Example</title> <meta charset="utf-8"> <meta name="viewport" content="width=device-width, initial-scale=1"> <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.1.0/css/bootstrap.min.css"> <script src="https://ajax.googleapis.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script> <script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.1.0/js/bootstrap.min.js"></script> </head> <body> <div class="container"> <h3>Festival Celebration</h3> <div class="card bg-info text-white"> <div class="card-body">Reach till 5PM</div> </div> </div> </body> </html>