.photoGrid_caption {
    width: 100%;
    margin: 0;
}

@media (min-width: 640px) {
    .photoGrid_caption {
        width: 50%;
        margin: 0;
    }
}

.photoGrid_text {
    margin: 0;
}

.photoGrid_photo {
    width: 80%;
    display: block;
    padding: 8px;
    margin: auto;
}

@media (min-width: 640px) {
    .photoGrid_photo {
        width: 40%;
        margin: 0px 32px 32px 0px;
    }
}