The (relatively) new View Transition API is really slick! Simply adding the following CSS to my blog enabled same-document view transitions - no JavaScript required!

Go ahead and give it a try now! Simply click a link to another page on this site and you should observe a seamless transition occur.

@view-transition {
  navigation: auto;
}

If you want to add even more pizzazz, you can declare CSS keyframe animations:

/* Create a custom animation */
@keyframes move-out {
  from {
    transform: translateX(0%);
  }

  to {
    transform: translateX(-100%);
  }
}

@keyframes move-in {
  from {
    transform: translateX(100%);
  }

  to {
    transform: translateX(0%);
  }
}

/* Apply the custom animation to the old and new page states */
::view-transition-old(root) {
  animation: 0.4s ease-in both move-out;
}

::view-transition-new(root) {
  animation: 0.4s ease-in both move-in;
}

For a blog like this there’s no real use, but for more complex web applications, the View Transition API is a really seamless way to integrate smooth transitions.

As of writing, it’s supported by the major browsers, excepting Firefox 😔.