Hi @Pbalazs89,
Thank you for reaching out to us. This is a quite a known issue when zooming / scaling the background images using CSS transform maybe there are not “in between” pixel renderings when doing transforms. . You can try minimize the jittery effect by adding the following code in the Theme Options > CSS:
.esg-entry-media {
transform: matrix3d(1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1) !important;
transition: transform 0.1s ease;
}
.esg-media-cover-wrapper:hover .esg-entry-media {
transform: scale(1.9, 1.9) !important;
}
This is only a work around and it may not completey remove the shaking effect but this will minimize some of the shaking.
Hope this helps!