<!DOCTYPE html>
<html>
<head>
<style>
@-webkit-keyframes foo {
    from {
        font-size: 2em;
    }
}
#foo {
    -webkit-animation: foo 1s linear 0.0s infinite;
}
</style>
<script>
if (window.testRunner)
    testRunner.dumpAsText();
</script>
</head>
<body>
<div id="foo"></div>
<span>PASS (no crash)</span>
</body>
</html>