As a specialized field within computer science, web development encompasses the design, creation, deployment, and maintenance of websites and web applications that run in a web browser. The practice is broadly divided into front-end (client-side) development, which focuses on the user-facing elements and interactivity using languages like HTML, CSS, and JavaScript, and back-end (server-side) development, which manages the server, application logic, and databases using languages such as Python, Node.js, or PHP. Together, these disciplines combine to produce the functional, interactive, and visually engaging digital experiences available on the World Wide Web, from simple static pages to complex social networks and e-commerce platforms.