.photos_and_videos {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-around;
}

.photos_and_videos img, .photos_and_videos video {
    width: 40%;
    min-width: 380px;
    border: 2px solid black;
    margin: 10px;
}

@media (max-width: 425px) {
    .photos_and_videos img, .photos_and_videos video {
        min-width: 300px;
    }
}

@media (max-width: 345px) {
    .photos_and_videos img, .photos_and_videos video {
        min-width: 250px;
    }
}