{{>easing-source-html}}

<script type="text/javascript">
YUI().use('anim', function(Y) {
    var anim = new Y.Anim({
        node: '#demo .yui3-bd',
        to: { height: 0 },
        easing: 'backIn'
    });

    var onClick = function(e) {
        e.preventDefault();
        anim.run();
    };
    Y.one('#demo .yui3-toggle').on('click', onClick);

});

</script>