css/css-pseudo/first-letter-digraph.html

<!doctype html>
<html>
<head>
  <meta charset="utf-8">
  <title>CSS Test: ::first-letter digraph recognition</title>
  <link rel="author" title="Jonathan Kew" href="mailto:jkew@mozilla.com">
  <link rel="match" href="reference/first-letter-digraph-ref.html">
  <link rel="help" href="https://drafts.csswg.org/selectors-3/#first-letter">
  <meta name="assert" content="Test checks that ::first-letter respects the Dutch 'ij' digraph.">
  <style>
  div {
    font-size: 32px;
  }
  div p {
    margin: 0;
    color: lightgray;
  }
  div p::first-letter {
    color: green;
  }
  </style>
</head>
<body>
  <p>Test passes if both "I" and "J" are green in these examples:</p>
  <div lang="nl">
    <p>IJsselmeer</p>
    <p>ijsselmeer</p>
    <p>“IJsselmeer”</p>
  </div>
  <div lang="en">
    <p lang="nl-NL">IJsselmeer</p> <!-- lang tag with country code should also work -->
    <p lang="nl-SR">IJsselmeer</p>
  </div>
  <p>But only "I" should be green in these examples:</p>
  <div lang="en">
    <p>IJsselmeer</p>
    <p>ijsselmeer</p>
    <p>“IJsselmeer”</p>
  </div>
  <div lang="nl">
    <p>Ijotalen</p> <!-- mixed case not treated as digraph -->
  </div>
</body>
</html>