body {
    background-color: #f9f9f9;
}

.body-insecure {
    background-color: black !important;
    background: url('https://cdn.engagevirtualrange.com/images/EVR-logo-background-admin-400.png') no-repeat top center fixed;
    margin: 0;
    padding: 0;
}

@media (max-width: 768px) {
    .body-insecure {
        background-size: 50%;
    }
}

.card-header {
    background-color: #dddddd;
}

.card-footer {
    background-color: #dddddd;
}