styles.css

body {
    margin: 0;
    overflow-x: auto;
    overflow-y: hidden;
    white-space: nowrap;
    background-color: #87CEEB;
    -webkit-overflow-scrolling: touch;
    touch-action: pan-x;
}

.parallax-layer {
    position: fixed;
    width: 100vw;
    height: 100vh;
    background-size: auto 100vh;
    background-repeat: repeat-x;
    top: 0;
    left: 0;
    z-index: -1;
}

.layer-1 { background-image: url('assets/city_parallax/1.png'); }
.layer-2 { background-image: url('assets/city_parallax/2.png'); }
.layer-3 { background-image: url('assets/city_parallax/3.png'); }
.layer-4 { background-image: url('assets/city_parallax/4.png'); }
.layer-5 { background-image: url('assets/city_parallax/5.png'); }
.layer-6 { background-image: url('assets/city_parallax/6.png'); }

.content {
    display: flex;
    align-items: center;
    justify-content: start;
    padding: 20px;
    font-size: 18px;
    width: 300vw;
    min-height: 100vh;
    overflow-x: auto;
    white-space: nowrap;
}

.section {
    width: 500px;
    height: 300px;
    background: rgba(255, 255, 255, 0.8);
    margin: 20px;
    padding: 20px;
    border-radius: 10px;
    box-shadow: 2px 2px 10px rgba(0, 0, 0, 0.2);
}

@media (max-width: 768px) {
    .parallax-layer {
        display: none;
    }

    body {
        background-image: url('assets/city_parallax/10.png');
        background-size: cover;
        background-repeat: no-repeat;
        background-position: center;
    }

    .content {
        width: 200vw;
    }

    .section {
        width: 80vw;
        height: 200px;
        margin: 10px;
    }
}

@media (max-width: 480px) {
    .content {
        width: 150vw;
    }

    .section {
        height: 180px;
        font-size: 12px;
    }
}