Office UI Fabric

Office UI Fabric is a collection of design components and tools created by Microsoft to help developers build consistent and visually appealing user interfaces for web applications. Think of it as a ready-made set of building blocks—like buttons, menus, and layouts—that ensure applications look and feel similar to Microsoft Office products. It streamlines the development process, enabling faster creation of professional-looking apps that align with Microsoft's design standards, providing users with a familiar and seamless experience across different programs and platforms.