body {
    background-image: url(./assets/bg-mobile.jpg);
    background-repeat: no-repeat;
    background-position: top center;
    background-size: cover;
    height: 100vh;
    font-weight: bold;
    text-align: center;
    color: white;
}

@media (min-width: 700px) {
    body {
        background-image: url(./assets/bg-desktop.jpg);
    }
}