.gallery-container {
    text-align: center;
}

.gal {
    background: #F1F1FA;
    width: calc(100% / 3 - 4px);
    display: inline-block;
    margin: 2px;
    border: 0;
    overflow: hidden;
    object-fit: cover;
    height: 300px;
    
}

/* Medium devices (tablets, less than 992px) */
@media (max-width: 991.98px) {
    .gal {
        width: calc(100% / 2 - 4px);
    }
}

/* Small devices (landscape phones, less than 768px) */
@media (max-width: 767.98px) { 
    .gal {
        width: 100%;
    }
}