offset-rotate-interpolation-001.html

<!DOCTYPE html>
<html class="reftest-wait">
  <head>
    <title>offset-rotate interpolation</title>
    <link rel="help" href="https://drafts.fxtf.org/motion-1/#offset-rotate-property">
    <link rel="match" href="offset-path-path-interpolation-ref.html">
    <meta name="assert" content="offset-rotate supports animation.">
    <style>
      @keyframes anim {
        from { offset-rotate: auto; }
        to   { offset-rotate: reverse; }
      }
      #target {
        position: absolute;
        left: 300px;
        top: 0px;
        width: 300px;
        height: 200px;
        background-color: lime;
        transform-origin: 0px 0px;
        offset-path: path("m 100 150 v -100");
        animation: anim 10s -5s paused linear;
      }
    </style>
  </head>
  <body>
    <div id="target"></div>
  </body>
  <script>
    requestAnimationFrame(() => {
      document.documentElement.classList.remove('reftest-wait');
    });
  </script>
</html>

chromium/third_party/blink/web_tests/external/wpt/css/motion/animation/reftests/offset-rotate-interpolation-001.html