HTML stands for "Hypertext Markup Language" and is a programming language that plays an important role in the field of web design. HTML can be used to create and structure websites by defining text, images, links and other elements.

HTML is based on a system of markup tags that describe the content of a web page. Each tag has a specific meaning and is enclosed in angle brackets (<>) are enclosed. For example, the tag <h1> is used for headings, while the tag <p> stands for heels.

Here is a simple example of how HTML tags are used to display a heading and a paragraph:

In this example, the <h1>-tag is the main heading of the web page, while the <p>-tag marks the underlying text as a paragraph.

By using HTML, web designers can define the structure and appearance of a web page by using the right tags and attributes. CSS (Cascading Style Sheets) is often used in conjunction with HTML to control the design and appearance of the website.

HTML forms the basic structure of a website and enables the integration of graphics, videos, tables, forms and much more. It is the language used to structure web content and display it on various devices on the internet.