.nationalspaceday-gallery-content .gallery-row {
    display: flex;
    margin: auto;
    justify-content: center;
}


.nationalspaceday-gallery-content .gallery-row .image img {
    width: 300px;
    height: 200px;
    border: 2px solid white;
}


@media(max-width:990px) {
    .nationalspaceday-gallery-content .gallery-row {
        display: grid;
        grid-template-columns: auto auto;
    }

   
    .nationalspaceday-gallery-content .gallery-row .image img {
        width: 500px;
        height: 400px;
        margin-top: 5px;
    }
}

@media(max-width:700px) {
    .nationalspaceday-gallery-content .gallery-row .image img {
        width: 500px;
        height: 300px;
        margin-top: 5px;
    }
}

@media(max-width:550px) {
    .nationalspaceday-gallery-content .gallery-row .image img {
        width: 500px;
        height: 250px;
        margin-top: 5px;
    }

   .nationalspaceday-gallery-heading h4 {
        font-size: 20px;
    }
}

@media(max-width:500px) {
    .nationalspaceday-gallery-content .gallery-row {
        display: grid;
        grid-template-columns: auto;
    }

    .nationalspaceday-gallery-content .gallery-row .image img {
        width: 500px;
        height: 250px;
        margin-top: 5px;
    }

    .nationalspaceday-gallery-heading h4 {
        font-size: 15px;
    }
}

@media(max-width:400px) {
    .nationalspaceday-gallery-content .gallery-row .image img {
        width: 450px;
        height: 250px;
        margin-top: 5px;
    }

    .nationalspaceday-gallery-heading h4 {
        font-size: 14px;
    }
}

@media(max-width:350px) {
    .nationalspaceday-gallery-content .gallery-row .image img {
        width: 450px;
        height: 200px;
        margin-top: 5px;
    }

    .nationalspaceday-gallery-heading h4 {
        font-size: 12px;
    }
}