Edit in JSFiddle

$('#button').on('click', function() {
    var sample = document.getElementById('sample');
    var target = document.getElementById('target');
    target.appendChild(sample);
});

<div id="source">
    <p id="sample">Blah Blah Blah</p>
    <p>(This &lt;p&gt; will be removed)</p>
</div>

<button id="button">appendChild</button>

<div id="target">
</div>

#sample {
    background-color: #eee;
}