HTML

The standard markup language used to create and structure content on the World Wide Web. HTML uses elements (tags) to define the semantic structure of documents, including headings, paragraphs, links, lists, tables, forms, and images. Proper use of semantic HTML is fundamental to web accessibility: screen readers and other assistive technologies rely on HTML structure to convey meaning, enable navigation, and present content in a logical order. Using HTML elements according to their semantic purpose — headings for hierarchy, lists for grouped items, labels for form inputs — rather than purely for visual presentation is a core principle of accessible web development.