CSS-in-JS

CSS-in-JS is a modern approach to styling websites where CSS (the code that controls the appearance of a site) is written directly inside the JavaScript code that powers the website. Instead of separate style sheets, styles are integrated within components, making styles dynamic, scoped specifically to individual elements, and easier to manage in complex applications. This approach streamlines development by combining styling and functionality in one place, allowing for more flexible, reusable, and maintainable designs, especially useful for complex or interactive user interfaces.