Edit in JSFiddle

var app2 = new Vue({
  el: '#app-2',
  data: {
    data: 'your page load date and time ' + new Date().toLocaleString()
  }
})
<html>
    <head>
        <link rel="stylesheet" href="index.css">
    </head>
    <body>
        <div id="app-2">
        <span v-bind:title="data">
            Hover your mouse over me for a few seconds
            to see my dynamically bound title!
        </span>
        </div>
        <script src="index.pack.js"></script>
    </body>
</html>