{{>easing-source-html}}

<script type="text/javascript">

YUI().use('anim', function(Y) {

var anim = new Y.Anim({

node: '#demo .yui3-bd',

to: { height: 1 },

easing: 'backIn'

});

var onClick = function(e) {

e.preventDefault();

anim.run();

};

Y.one('#demo .yui3-toggle').on('click', onClick);

});

</script>