.create-signature-btn {
    background: #000;
    border: 0;
    color: #fff;
    border-radius: 2px;
    padding: 12px 30px;
    font-size: 16px;
    cursor: pointer;
}

.signature-field {
    padding: 20px 16px !important;
}

button.create-signature-btn[disabled="disabled"] {
    pointer-events: none;
    opacity: .8;
    cursor: not-allowed;
}

.wc-block-components-checkout-place-order-button.disabled {
    pointer-events: none;
    opacity: .78;
}

button#place_order[disabled] {
    pointer-events: none;
}