Custom CSS for mobile view carousel

Hi! looking for help with CSS, I've tried to insert custom CSS to have my mobile view show more images in a "brands we've worked with" carousel and I can't seem to make it work. Looking for help/advice

website is stokedspruce.com 

You can use this code to Website Tools (under Not Linked) > Custom CSS

@media screen and (max-width:767px) {
.user-items-list-item-container[data-section-id="659245bd0837e0213489fcf2"] ul {
    min-height: unset !important;
    grid-template-columns: repeat(3,1fr) !important;
}
}