@media (max-width: 510px) {
    body#checkout section.checkout-step .payment-options .payment-option {
        img {
            margin-right: 0;
        }
        label {
            width: 100%;
            margin-bottom: 1rem;
        }
    }

    .payment-option label span {
        height: auto !important;
        line-height: 1.4;
    }

}