The <body> HTML element represents the main content area of an HTML document. It encapsulates all the visible content that users see when they visit a webpage. The <body> element should be placed directly inside the <html> element.

Here’s an example of the basic structure of an HTML document with the <body> element:

<!DOCTYPE html>
    <title>My Webpage</title>
    <h1>Welcome to My Webpage</h1>
    <p>This is the main content of the webpage.</p>

In this example, the <body> element contains a heading (<h1>) and a paragraph (<p>), representing the main content of the webpage.

The <body> element can contain various types of content, such as text, headings, paragraphs, images, links, lists, forms, and more. It serves as a container for all the visible elements and provides the structure for the webpage’s content.

You can apply CSS styles and JavaScript functionality to the <body> element to control the appearance and behavior of the content within it.

It’s important to note that there should be only one <body> element per HTML document, and it should contain all the visible content of the webpage.