body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    display: flex;
    justify-content: center;
}
.gallery {
    column-count: 3;
    column-gap: 10px;
    width: 90%;
    margin: 20px 0;
}
.image-item {
    margin-bottom: 10px;
}
.image-item img {
    width: 100%;
    border-radius: 8px;
}
@media (max-width: 768px) {
    .gallery {
        column-count: 2;
    }
}
@media (max-width: 480px) {
    .gallery {
        column-count: 1;
    }
}