Mouseleave event Vue.js

This one is working for me.

@strategicsdemexico make sure you load the vuejs before instantiating a new vm

<div class="app">
    <p @mouseleave="mouseLeave"> 
    data here 
    </p>

</div>
<script src="https://cdnjs.cloudflare.com/ajax/libs/vue/1.0.11/vue.js"></script>

<script type="text/javascript">
    new Vue({
        el: 'body',
        methods: {
            mouseLeave: function() {
                alert('Mouse Leave')
            }
        }

    });

</script>