.bg-image {
    background-image: url("./lukas-s-jetKd31iViQ-unsplash.jpg");
    background-position: center center;
    background-repeat: no-repeat;
    background-attachment: fixed;
    background-size: cover;
    background-color: #444;
}

.luebeck {
    background-image: url("./lukas-s-jetKd31iViQ-unsplash.jpg");
}

.karlsruhe {
    background-image: url("./enzo-lo-presti-mKtRlysoims-unsplash-cropped.jpg");
}

.kaunas {
    background-image: url("./aliaksei-lepik-lgi5IhnQ-Bk-unsplash.jpg");
}

.kiel {
    background-image: url("./thomas-grams-UXIwAUKqj7A-unsplash.jpg");
}