Possible to create parallax effect without background-image on a div?
<p>I know how to create a parallax effect using background-size on a div and using background-attachment etc, but if I have code (created by a Wordpress plugin) that looks something like this:</p>

<pre><code>&lt;div class="big-leader&gt;
&lt;div class="backstretch"&gt;
&lt;img src="background-image.jpg"&gt;
&lt;/div&gt;
&lt;/div&gt;
</code></pre>

<p>how do I create a parallax effect on that? Is it possible without applying background-image on a div (with css?)</p>