Hi there,
try this CSS:
@media (max-width: 768px) {
/* Display responsive thumb */
.woocommerce table.cart .product-thumbnail,
.woocommerce-page #content table.cart .product-thumbnail,
.woocommerce-page table.cart .product-thumbnail {
display: block !important;
}
/* Align item remove an thumbnail */
.woocommerce table.shop_table_responsive tr td.product-thumbnail::before {
content: '';
}
.woocommerce table.shop_table_responsive tr td.product-remove {
float: left;
border: 0;
}
}