<!doctype html>
<html>
<head>
<title>Bug 1238660</title>
</head>
<body>
<span>
<div>
<span></span>
</div>
</span>
<style>
span {
animation: anim 0.1s 0.1s;
}
@keyframes anim { to { opacity:1 } }
</style>
</body>
</html>