Web design and development involve creating and maintaining websites to ensure functionality, aesthetics, and user experience. Web design focuses on layout, color schemes, typography, and responsiveness, ensuring a visually appealing and intuitive interface. Web development includes front-end (HTML, CSS, JavaScript) and back-end (databases, server-side scripting) to build interactive and dynamic websites. Key elements include UI/UX design, mobile optimization, fast loading speeds, and security. A well-designed website enhances user engagement, brand credibility, and SEO performance. With evolving trends like AI, progressive web apps, and no-code tools, web design and development continue to shape the digital landscape for businesses and individuals.