header {
    padding: 12px 0;
    color: #ffffff;
}

header a {
    color: #ffffff;
    text-decoration: none !important;
}

.card {
    margin: 50px 0;
}

footer {
    text-align: center;
    border-top: 1px solid #cccccc;
    padding: 12px 0;
}

.alert {
    margin-top: 30px;
}