HTML HTML provides structure to the content appearing on a website, such as images, videos, or text. HTML stands for HyperText Markup Language A markup language is a computer language that defines the structure and presentation of raw text. HyperText is text displayed on a computer or device that provides access to other text through links, AKA hyperlinks. HTML can be layered with CSS and JavaScript. HTML is organized as a collection of family tree relationships. When an element is contained inside another element, it is considered the child of that element. The child element is said to be nested inside the parent element. The relationship between elements and their ancestor and descendant elements is known as hierarchy.