Bootstrap 5 Cards Using utilities: The height and weight of the card can be set up using card utilities. We can use classes like w-* and h-* to set the width and height of the card respectively. This * can be substituted with the required percentage value.
Bootstrap 5 Cards Sizing using utilities Class: No special classes have been used, Bootstrap 5 Sizing class will do the task for Card sizing.
Syntax:
<div class="card w-*"> <div class="card-body"> Content </div> </div>
Example 1: In this example, we will set the width of the card using class w-50
<!DOCTYPE html>
<html>
<head>
<!-- Bootstrap CDN-->
<link href=
"https://cdn.jsdelivr.net/npm/bootstrap@5.0.2/dist/css/bootstrap.min.css"
rel="stylesheet"
integrity=
"sha384-EVSTQN3/azprG1Anm3QDgpJLIm9Nao0Yz1ztcQTwFspd3yD65VohhpuuCOmLASjC"
crossorigin="anonymous">
<title>Cards Using Utilities</title>
</head>
<body class="w-8 m-1">
<div>
<h1 class="text-success">
GeeksforGeeks
</h1>
<h3>Cards Using Utilities</h3>
<div class="card w-50">
<img src=
"https://media.geeksforgeeks.org/wp-content/cdn-uploads/Java.png"
class="card-img-top">
<div class="card-body">
<h5 class="card-title">Java</h5>
<p class="card-text">Java is Object Oriented.
However, it is not considered as pure
object-oriented as it provides support for
primitive data types (like int, char, etc)
</p>
</div>
</div>
</div>
</body>
</html>
Output:

Example 2: In this example, we will use height (h-100 ) and width (w-50) utilities together
<!DOCTYPE html>
<html>
<head>
<!-- Bootstrap CDN -->
<link href=
"https://cdn.jsdelivr.net/npm/bootstrap@5.0.2/dist/css/bootstrap.min.css"
rel="stylesheet"
integrity=
"sha384-EVSTQN3/azprG1Anm3QDgpJLIm9Nao0Yz1ztcQTwFspd3yD65VohhpuuCOmLASjC"
crossorigin="anonymous">
<title>Cards Using Utilities</title>
</head>
<body class="w-8 m-1">
<div>
<h1 class="text-success">
GeeksforGeeks
</h1>
<h3>Cards Using Utilities</h3>
<div class="card h-100 w-50">
<img src=
"https://media.geeksforgeeks.org/wp-content/cdn-uploads/Java.png"
class="card-img-top">
<div class="card-body">
<h5 class="card-title">Java</h5>
<p class="card-text">Java is Object Oriented.
However, it is not considered as pure
object-oriented as it provides support
for primitive data types (like int, char, etc)
</p>
</div>
</div>
</div>
</body>
</html>
Output:

References: https://getbootstrap.com/docs/5.0/components/card/#using-utilities