chromium/third_party/blink/web_tests/external/wpt/css/css-will-change/will-change-abspos-cb-003-ref.html

<!doctype html>
<meta charset="utf-8">
<title>CSS Test Reference</title>
<style>
  div {
    border: 1px solid green;
    background: green;
    margin-top: 100px;
    width: 100px;
    height: 100px;
  }
</style>
<div></div>