sousa-gecko/testing/web-platform/tests/css/css-ui/reference/text-overflow-string-004-ref.html

<!DOCTYPE html>
<meta charset="utf-8">
<title>CSS Basic User Interface Reference File</title>
<link rel="author" title="Minseong Kim" href="mailto:jja08111@gmail.com">
<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
<style>
  body, p {
    margin: 0;
  }
  div {
    font-size: 10px;
    overflow: hidden;
  }
  span {
    font-family: Ahem;
    font-size: 30px;
    text-emphasis: dot;
  }
</style>
<body>
  <p>Test passes if text-emphasis is only on a black rectangle, not on the <strong>123</strong></p>
  <div>
    <span>Test</span>123
  </div>
</body>