Change Button Color of Paywall Box

/* Change Button Color of Paywall Box */
.jpw-wrapper .package-item {
    color: white;
    background-color: black;
}

.jpw-wrapper .package-item .package-title h3,
.jpw-wrapper .package-item .package-price .price {
    color: white !important;
}

.jpw-wrapper .package-item .package-button .button {
    background-color: blue;
}