.geocities-slideshow {
    max-width: 800px;
    padding-top: 75%;
    position: relative;
    display: block;
    overflow-x: hidden;
}


    @media only screen and (min-width : 1000px) {
        .geocities-slideshow {
            width: 800px;
            height: 600px;
            margin-bottom: var(--line-height) !important;
        }
    }

    .geocities-slideshow > img {
        position: absolute;
        top: 0;
        left: 0;
    }