index.css

body {
    background: black;
}
h1 {
    color: white;
    text-align: center;
    padding: 30px;
}

.btn {
    text-decoration: none;
    padding: 20px;
}

a {
    color: rgb(255, 255, 255);
    
}


marquee{
    font-size: 25px;
    color : whitesmoke;
    padding-top : -20px;
    padding-bottom : 10px;
}

body{
    background-image: url('assets/background.png')
}

.jumbotron {
    position: relative;
    background: rgb(5, 44, 56);
    color: aliceblue;
    background-image: url('/docs/img/showcase-image.jpg');
    background-size: cover;
    z-index: -1;
}

#logo {
    width: 100px;
    background-size: cover;
}

.card-deck {
    padding: 50px;
}

.overlay {
    background: black;
    width: 100%;
    height: 400px;
    position: absolute;
    top: 1px;
    left: 0;
    opacity: 0.7;
    z-index: -1;
}