<!DOCTYPE html>
<html>
<title>Root to shared animation test (ref)</title>
<link rel="help" href="https://github.com/WICG/view-transitions">
<link rel="author" href="mailto:vmpstr@chromium.org">

<style>
body {
  background: lightgreen;
  padding: 0;
  margin: 0;
}
#box {
  width: 100px;
  height: 120px;
  background: blue;
  contain: paint;
}
</style>

<div id=box></div>
