#zoom-bg {
    position: fixed;
    left: 0;
    top: 0;
    width: 100vw;
    height: 100vh;
    background-color: rgba(0, 0, 0, 0.5);
    display: none;
    opacity: 0;
    z-index: 10000;
    transition: opacity 0.25s;
    cursor: pointer;
}
#zoom-img {
    position: fixed;
    left: 50vw;
    top: 50vh;
    transform: translate(-50%, -50%);
    max-height: 95vh;
    max-width: 95vw;
}