body {
    background-color: #eef3f9;
}

.image-slider {
    width: 90%;
    max-height: 100vh;
    margin: 0 auto;
    display: flex;
    justify-content: center;
    align-items: center;
}

.image-slider img {
    width: 90%;
    height: auto;
    display: none;
}

@media screen and (max-width: 767px) {
    body {
        margin: auto;
        overflow: hidden;
        position: fixed;
        width: 100%;
        height: 100%;
    }

    .image-slider {
        width: 100%;
        overflow: hidden;
    }

    .image-slider img {
        width: 125%;
        height: auto;
        position: absolute;
        top: 50%;
        left: 50%;
        transform: translate(-50%, -50%);
    }
}