Front-end development is the practice of crafting the visual and interactive aspects of a website or web application, focusing on how users interact with and experience the digital product. It involves writing code that runs in the browser, translating design concepts into functional, responsive, and accessible interfaces. At the heart of front-end development lies HTML (HyperText Markup Language), CSS (Cascading Style Sheets), and JavaScript, each playing a crucial role in shaping the web. HTML provides the structural foundation, defining the content and layout of a webpage, while CSS brings that structure to life with style, color, typography, and layout. JavaScript adds interactivity, enabling dynamic behavior and enhancing user experience. Together, these technologies form the backbone of the modern web, allowing developers to create everything from simple static pages to complex, interactive web applications.