Automatic scroll to top on „next page"

Example URL

Here's my issue: When I resize the browser (approx. 320 px width), scroll down and click on the icon (green arrow) „next“ the scroll bar stays at the bottom of the page. What I want to achieve is something like

$(document).ready(function () {
$('html, body').animate({ scrollTop: 0 }, 'slow');
});

so the next page will autoscroll to top, but I've tried with no success. Is there any solution?

Thank you!