chromium/third_party/blink/web_tests/css3/motion-path/combine-anchor-transform.html

<!DOCTYPE html>
<style>
* {
  margin: 0;
  padding: 0;
}
span {
  display: inline-block;
  width: 100px;
  height: 100px;
}
#span2 {
  offset: path('m 0 0 v 200') 100px auto;
  offset-anchor: 15% 40%;
  transform-origin: 20% 30%;
  transform: scale(2) rotate(90deg);
}
</style>
<span>span1</span>
<span id="span2">span2</span>
<span>span3</span>