HTML (HyperText Markup Language) is the standard language used to structure and display content on the web. It defines elements like headings, paragraphs, links, images, tables, and forms, serving as the backbone of all websites.

Example:

<!DOCTYPE html>
<html>
  <head>
    <title>My First Page</title>
  </head>
  <body>
    <h1>Hello, World!</h1>
    <p>This is my first HTML page.</p>
  </body>
</html>