y>
<script>
test_valid_value("animation-direction", "normal");
test_valid_value("animation-direction", "reverse");
test_valid_value("animation-direction", "alternate");
test_valid_value("animation-direction", "alternate-reverse");
test_valid_value("animation-direction", "normal, reverse, alternate, alternate-reverse");
</script>
</body>
</html>
