Hypertext Markup Language, also known as HTML, is the programming language used to write web pages.
HTML is concerned with a website's structure as opposed to CSS. The language is used to create a website's blueprint. HTML gives instructions to the web browser regarding how to render the page. Using a text editor on a computer (such as TextEdit for Mac) the author begins by creating an HTML document. After that, with the help of HTML tags, the author completes the HTML document with a series of HTML elements. HTML tags are essentially markers that tell the browser how to display the enclosed text.