Edit in JSFiddle

$(document).ready(function () {
    $(document).on('click', '#getHtml', function (event) {
      var content=$(".test").html();
        alert(content);
    });
});

<h1>Jquery html() to get value</h1>
<div class="test">
    <h1>Too Good</h1
<p> html() get the html content <b>with specified selector.</b></p>
</div>
<input type="submit" value="get Html" id="getHtml" />