.kdp-product-image-slider-wrapper-inner, .snake-loader-wrapper-inner {
    height: 125vw;
} 
.kdp-product-image-slider-wrapper-inner, .royalslider-fitter, 
.royalslider-fitter *:not(a):not(img):not(.rsThumbsArrow) {
    height: calc(90vh - 150px)!important;
 
    max-height: 600px;
    border-radius: 5px;
}
.rsOverflow {
    height: 125vw!important;
    max-height: 600px;
}
.kdp-product-image-slider-wrapper-inner, .snake-loader-wrapper-inner {
    max-height: 600px;
}
.kdp-product-image-slider-wrapper-inner {

    max-width: 590px!important;
    margin: auto;
}