HTML (HyperText Markup Language)
Definition
The standard markup language for creating web pages, defining the structure and content of a page using elements represented by tags.
HTML is the foundational language of the web. It uses a system of tags to define elements like headings, paragraphs, links, images, tables, forms, and media. Every web page is built on HTML, which provides the structural skeleton that CSS styles and JavaScript makes interactive.
Modern HTML5 introduced semantic elements (header, nav, main, article, section, footer) that improve accessibility, SEO, and code readability. It also added native support for audio, video, canvas drawing, local storage, geolocation, and form validation.
Writing semantic, accessible HTML is crucial for web development. Using proper heading hierarchy, alt text for images, ARIA attributes for interactive elements, and form labels ensures that web content is usable by everyone, including people using screen readers and other assistive technologies.
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Related Terms
CSS (Cascading Style Sheets)
techA stylesheet language used to describe the visual presentation and layout of HTML documents, controlling colors, fonts, spacing, and responsive design.
DOM (Document Object Model)
techA programming interface for web documents that represents the page structure as a tree of objects, allowing programs to change document structure, style, and content.
URL (Uniform Resource Locator)
techA web address that specifies the location of a resource on the internet, including the protocol, domain name, path, and optional parameters.
Markdown
techA lightweight markup language that uses plain text formatting syntax, designed to be easily converted to HTML and other formats.
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