.custom-gallery {
    display: block;
    width: 100%;
}

.gallery-row {
    display: flex;
    flex-wrap: nowrap; 
    width: 100%;
    margin-bottom: 20px;
}

.gallery-column {
    flex: 1;
    margin: 5px;
}

.gallery-item {
    margin-bottom: 10px;
}