create a different image gap on mobile

Hey Yan,

Please try adding this code to the Quick CSS section under Enfold > General Styling or to your child theme’s style.css file:

@media only screen and (max-width: 767px) {
.av-large-gap.av-flex-size .av-masonry-entry .av-inner-masonry {
margin-right: 30px;
margin-bottom: 30px;
}

.av-masonry-container {
width: 103.5%;
}}

If you still have any issue please share the link where we can see the element in question.

Best regards,
Vinay