what is a div used for in html code example

Example 1: what is div in html

<div>
  <!-- This is opening of a division tag-->
</div>

Example 2: div html

<div style="background-color:lightblue">
  <h3>This is a heading</h3>
  <p>This is a paragraph.</p>
</div>

Example 3: what is a div element in html

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.