.shopify-section--collection-tiles {
    h2 {
        margin-bottom: 30px;
        @media (max-width: 767px) {
            margin-bottom: 15px;
        }
    }
    .collection-tiles__references {
        padding: 8px 15px 5px;
        -webkit-transition: opacity .15s ease-in-out;
        -moz-transition: opacity .15s ease-in-out;
        -ms-transition: opacity .15s ease-in-out;
        -o-transition: opacity .15s ease-in-out;
        transition: opacity .15s ease-in-out;
        &:hover {
            opacity: 0.7;
        }
    }
}