On a Facebook page (https://www.facebook.com/ediagonismoi.gr/app/1844787285748624/) I have a responsive image that makes the scrollbars show. If I remove the image I don’t get the scrollbars so I suppose that the issue is with the image.
I can’t use for example overflow: hidden; on body tag because I want to keep the scrollbars when the page accessed directly.
I use the following CSS on img:
.featured-image img {
display: block;
height: auto;
margin: 0 auto;
}