HTML
HTML is the foundational language used to create the structure of web pages displayed in a browser. It uses opening and closing tags to define elements such as paragraphs, headings, links, lists, and images. A basic HTML page includes a <!DOCTYPE html> declaration, followed by the <html>, <head>, and <body> tags. The <title> tag defines what appears on the browser tab, while the <body> contains visible content.
HTML enables navigation through hyperlinks using the href attribute and includes multimedia with tags like <img> and <video>. HTML5 introduced semantic tags (like <article> and <section>), responsive design capabilities, and local storage options.
Combined with CSS and JavaScript, HTML forms the backbone of every modern web application. It’s used in everything from simple landing pages to complex web apps, games, and documents. HTML remains the most essential skill for anyone learning to build or understand websites.