How to implement view transitions in multi-page apps

The View Transition API introduces view transitions and state-based UI changes to the broader web, allowing for animations between DOM states in both single-page and multi-page applications without relying on heavy JavaScript frameworks. This capability, now supported in Chrome 126 and Safari 18.2, enables developers to enhance navigation experiences through CSS animations, such as crossfades, while requiring JavaScript for complex logic. The API also supports customizing animations via pseudo-elements and offers features like lifecycle events and navigation information to refine transitions. Developers can utilize declarative render-blocking to ensure stable animations, although accessibility considerations, like respecting users' motion preferences, are important. Despite some initial complexity, the API provides a progressive enhancement opportunity, promoting a faster and more engaging web experience.