Tailwind CSS shadow-inner Class

The Tailwind CSS shadow-inner utility applies box-shadow: inset 0 2px 4px 0 rgb(0 0 0 / 0.05); to an element when added to its class attribute. It applies an inset shadow inside the element, creating a sunken or pressed appearance. Used for active button states, well containers, and input fields.

This utility is part of Tailwind's Effects module, designed for applying visual effects including shadows, opacity, rings, and blur filters to elements. In Tailwind's utility-first workflow, you add shadow-inner 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:shadow-inner, md:shadow-inner, lg:shadow-inner, and xl:shadow-inner, allowing different behavior at each breakpoint. State variants like hover:shadow-inner and focus:shadow-inner 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 `shadow`, `shadow-none`, `shadow-sm`, `rounded` 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.