.nova-calendar-btn {
    display: inline-block;
    background: #4285F4;
    color: #fff;
    padding: 12px 20px;
    border-radius: 8px;
    text-decoration: none;
    font-size: 15px;
    font-weight: 600;
}

.nova-calendar-btn:hover {
    opacity: .9;
}