The <div> tag is nothing more than a container unit that encapsulates other page elements and divides the HTML document into sections.
The div can be used for reading purposes or to nest all the information inside the div then to style the div through css as a background card.
<html>
<head>
<style>
.myDiv {
border: 5px outset red;
background-color: lightblue;
text-align: center;
}
</style>
</head>
<body>
<div class="myDiv">
<h2>This is a heading
in a div element</h2>
<p>This is some text in a div element.</p>
</div>
</body>
</html>
