chromium/third_party/blink/web_tests/transforms/overflow-with-transform.html

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

<html lang="en">
<head>
  <meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
  <title>Scrollable Element With Transform</title>
  <style type="text/css" media="screen">
    #container {
      position: absolute;
      width: 200px; 
      height: 200px; 
      overflow:hidden;
      z-index: 0;
      border: 1px solid black;
      transform: rotate(0);
    }
    
    #inner {
      position: relative;
      width: 200px;
      height: 500px;
      background-color: gray;
    }
  </style>
</head>

<body>
  
  <p>Gray div should be clipped by overflow: scroll div</p>
  <div id="container">
    <div id="inner">
      <p>
      ihasdkas sdkha sjdkahk dahsd jashd kashd kasdh aksd haskdh aksd h
      asfadjaskdh akdhaskd haskd haskd haskd haskdhka shdkasdh kas hdk 
      asd asd asdas das d
      </p>

      <p>
      ihasdkas sdkha sjdkahk dahsd jashd kashd kasdh aksd haskdh aksd h
      asfadjaskdh akdhaskd haskd haskd haskd haskdhka shdkasdh kas hdk 
      asd asd asdas das d
      </p>

      <p>
      ihasdkas sdkha sjdkahk dahsd jashd kashd kasdh aksd haskdh aksd h
      asfadjaskdh akdhaskd haskd haskd haskd haskdhka shdkasdh kas hdk 
      asd asd asdas das d
      </p>
    </div>
  </div>

</body>
</html>