mozilla-release/layout/style/crashtests/1245260-1.html

<!DOCTYPE html>
<html>
<head lang="en">
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Bug 1245260</title>
</head>
<body>
<style>
body {
  color: blue;
}

div {
  transition: text-emphasis-color 0.1s;
}

.hide {
  display: none;
}

a {
  color: red;
  transition: text-emphasis-color 0.1s;
}

span {
  transition: text-emphasis-color 0.1s;
}

@font-face {
  font-family: "icon-fonts";
  src: url(x);
}
</style>

<div>
<span><a>Shows</a></span>
<span><a>Video</a></span>
<span><a>Schedule</a></span>
<span><a>Topics</a></span>
<span><a>Games</a></span>
<span><a>Shop</a></span>
<span><a>This Day In History</a></span>
<span><a>Ask History</a></span>
<span><a>History Lists</a></span>
<span><a>Hungry History</a></span>
<span><a>Speeches &amp; Audio</a></span>
<span class="hide"><a>Sign In</a></span>
<span><a class="hide">Sign Out</a></span>
</div>
<script/>
</body>
</html>