#lightbox {
position: fixed;
z-index: 9999;
top: 0; left: 0;
width: 100%; height: 100%;
background: rgba(0,0,0,0.8);
display: none;
justify-content: center;
align-items: center;
}
#lightbox.active {
display: flex;
}
#lightbox img {
max-width: 90%;
max-height: 90%;
border-radius: 8px;
box-shadow: 0 0 15px #000;
transition: 0.3s;
}