.wpsc-upgrade-panel {
    font-size: 14px;
}

.wpsc-upgrade-panel__description {
    font-size: 14px;
    line-height: 1.6;
}

.wpsc-upgrade-panel__button {
    margin: 30px 0 20px;
}

.wpsc-upgrade-panel__button a {
    background: #e27730;
    border: none;
    color: #fff;
    border-radius: 2px;
    font-size: 16px;
    font-weight: bold;
    padding: 10px 15px;
    text-decoration: none;
    text-transform: uppercase;
}

.wpsc-upgrade-panel__button a:hover {
    text-decoration: none;
}