Force summary block to display 3 images per row on mobile

Hi, I want my mobile website to display 3 images per row on my summary block exactly as it is currently on the desktop view. What code do I need to add? Thanks!

www.reynardlee.com

You can use a CSS code like this (Website Tools > Custom CSS)

@media screen and (max-width: 767px) {
    body.homepage .summary-item {
        width:33.3333% !important
    }
}