slideToggle work on Jsfiddle, doesnt work on my website
<p>It works here: <a href="https://jsfiddle.net/wqvjgmzp/" rel="nofollow">https://jsfiddle.net/wqvjgmzp/</a></p>

<pre><code>$(document).ready(function(){
    $(".scroller").click(function(){
        $(this).next('div.content-scroller').slideToggle();
    });
});
</code></pre>

<p>Doesn't work here: <a href="http://serwer1521488.home.pl/autoinstalator/wordpress/?page_id=7&amp;lang=pl" rel="nofollow">http://serwer1521488.home.pl/autoinstalator/wordpress/?page_id=7&amp;lang=pl</a></p>

<p>has anyone idea why that doesn't work?</p>