.products-grid li.item {
    position:relative;
}
.products-grid li.item .product-badge {
    position:absolute;
    top:0;
    left:0;
    z-index:10;
    pointer-events: none;
}

.product-img-box #image-wrapper {
    position:relative;
}
.product-img-box #image-wrapper .product-badge {
    position:absolute;
    top:0;
    left:0;
    z-index:10;
    pointer-events: none;
}