chromium/third_party/blink/web_tests/fast/css/clip-zooming.html

<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
   "http://www.w3.org/TR/html4/loose.dtd">

<html lang="en">
<head>
  <title>clip and zooming</title>
  <style type="text/css" media="screen">
    html {
      zoom: 150%;
    }
    body {
      margin: 0;
    }
    .tester {
      position: absolute;
      top: 100px;
      left: 50px;
      height: 100px;
      width: 100px;
      background-color: red;
    }
    .box {
      position: absolute;
      top: 50px;
      left: 0px;
      height: 200px;
      width: 200px;
      background-color: green;
      clip: rect(50px 150px 150px 50px);
    }
  </style>
</head>
<body>
  <p><a href="https://bugs.webkit.org/show_bug.cgi?id=24753">https://bugs.webkit.org/show_bug.cgi?id=24753</a></p>
  <p>Test CSS clip with zooming. You should not see any red below</p>
  <div class="tester">
  </div>
<div class="box">
</div>
</body>
</html>