.masonry-gallery {
    width: 100%;
    margin: 0 auto;
}

.masonry-item {
    width: 24%;
    margin-bottom: 20px;
    break-inside: avoid;
}

.masonry-item img {
    width: 100%;
    height: auto;
    display: block;
    border-radius: 5px;
}

@media (max-width: 768px) {
    .masonry-item {
        width: 48%;
    }
}

@media (max-width: 480px) {
    .masonry-item {
        width: 100%;
    }
}