React Animate Height

React Animate Height is a lightweight, dependency-free (beyond React itself) component designed for animating the height of elements using CSS transitions. It enables developers to smoothly slide elements up to `0`, down to `auto`, or to any specific pixel or percentage height. The current stable version is 3.2.3, which is built with React Hooks, requiring React 16.8 or newer. The library appears to be actively maintained, with 'Version 3' indicating significant updates and ongoing support. A key differentiator is its focused approach to height animation, offering optional opacity transitions and control over CSS classes at various animation states, without the overhead of a full-fledged animation library. It is often chosen for its simplicity and direct control over height transitions in React applications, especially when `auto` height animation is required, which can be complex with pure CSS.