.hidden {
    display: none;
}

.error {
    color: red;
}

.woocommerce .wcf_add_amount button.button.alt {
    margin-top: 0;
    margin-bottom: 10px;
    min-width: 0;
    width: 90%;
}

.woocommerce .wcf_add_amount button.button.alt.custom-selected {
    background: #313131 !important;
}

#order_review p {
    margin: 0;
}