Tailwind CSS origin-top Class

The Tailwind CSS origin-top utility applies transform-origin: top; to an element when added to its class attribute. It sets the transform origin to the top edge of the element. Rotations and scales pivot from the top, useful for dropdown menus and accordion animations.

This utility is part of Tailwind's Transforms module, designed for applying geometric transformations like scale, rotate, translate, and skew to elements. In Tailwind's utility-first workflow, you add origin-top directly to your HTML elements rather than writing custom CSS. This approach accelerates development and keeps styles co-located with your markup, making it easy to see exactly how each element is styled at a glance.

Common responsive variants include sm:origin-top, md:origin-top, lg:origin-top, and xl:origin-top, allowing different behavior at each breakpoint. State variants like hover:origin-top and focus:origin-top enable interactive styling without any JavaScript. You can also combine multiple variants for fine-grained control over when the utility applies.

This class works well alongside `origin-center`, `rotate-45`, `scale-95`, `transition-transform` to build complete, production-ready interfaces. Tailwind's tree-shaking ensures only utilities you actually use appear in your final CSS bundle, keeping file sizes minimal. Browser support for the underlying CSS is excellent across Chrome, Firefox, Safari, and Edge.