Hypertext Markup Language, commonly known as HTML, is the standard coding language used to create and structure content on the web. HTML defines the layout and elements of a webpage using tags, which browsers read to display text, images, links, headings, lists, and other content. It does not control the visual style or functionality directly, but it provides the foundation for formatting, accessibility and search engine optimisation.

HTML uses a system of opening and closing tags to mark up content. For example,

defines a main heading,

defines a paragraph and creates a hyperlink. HTML also includes attributes to add additional information, such as alt text for images or lang for specifying language. Webpages often combine HTML with Cascading Style Sheets (CSS) for design and JavaScript for interactivity. Together, these technologies shape how websites appear and respond to users.

Understanding HTML is essential for anyone involved in web content, digital marketing or user experience. It enables better collaboration between content teams and developers and supports content that is accessible, structured and search-friendly. For marketers, proper use of HTML tags helps improve SEO, manage metadata, and ensure consistent formatting across devices. For nonprofits, educators and B2B companies, well-structured HTML ensures that digital content reaches the widest possible audience and meets web standards.