Summary block: list view for mobile and grid view for desktop, css

Add to Home > Design > Custom CSS

@media screen and (max-width:640px) {
body#collection-5c6036094192028682dec481 {
.summary-thumbnail-outer-container {
    width: 40%;
    float: left;
}
.summary-thumbnail-outer-container img {
    width: 100% !important;
    height: auto !important;
    left: 0 !important;
}
.summary-content.sqs-gallery-meta-container {
    width: 60%;
    float: left;
}
}
}

Thank you @tuanphan ! You're a true hero on this forum 🙂