#lightbox {
    position: fixed;
    z-index: 1000;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, .8);
    display: none;
}
  
#lightbox.active {
    display: flex;
    justify-content: center;
    align-items: center;
}
  
#lightbox img {
    max-width: 90%;
    max-height: 80%;
    padding: 4px;
    background-color: black;
    border: 2px solid white;
}