body {
    margin: 0;
}

.image_banner {
    overflow: hidden;
 
    height: 100%;
    z-index: 10;
}

.image_banner img {
    object-fit: cover;

    opacity: 0;
    transition-duration: 0.6s;
    transition-property: opacity;
    z-index: 11;
    
    top: unset;
    position: absolute;
    height: 100%;
    width: 100%;
}

.image_banner .show {
    opacity: 1 !important;
    transition: none;
    z-index: 10 !important;
}