.jumbotron {
    background-color: darkblue;
    text-align: center;
    color: white;
}
.card-header {
    background-color: darkblue;
    color: white;
    font-display: bold;
}

.btn-primary {
    margin-top: 5%;
}

.card {
    position: relative;
    padding-bottom: 4%;
    margin-left: 15%;
    border-color: darkblue;
    width: 75%;
    margin-top: 2%;
}