.payment-options {
    overflow: hidden;
    transition: max-height 0.4s ease, opacity 0.4s ease;
    max-height: 0;
    opacity: 0;
}

    .payment-options.show {
        max-height: 380px;
        opacity: 1;
    }

.btn-payment-options {
    width: 50%;
}

@media(max-width: 575px) {
    .btn-payment-options {
        width: 100%;
    }
}