HTML & CSS
HTML (HyperText Markup Language) and CSS (Cascading Style Sheets) are the foundational technologies for creating and styling web pages. HTML provides the structure and content of a webpage using elements like headings, paragraphs, and links, while CSS controls the visual presentation, including layout, colors, and fonts. Together, they enable developers to build static and dynamic websites that are accessible across browsers and devices.
Developers should learn HTML and CSS as they are essential for front-end web development, required for creating any website or web application. They are used in scenarios ranging from building simple static pages to complex responsive designs, and serve as the base for frameworks like React or Angular. Mastery ensures control over web semantics, accessibility, and cross-browser compatibility.