.video_iframe_playlist {
    height: 500px;
}

@media (max-width: 1000px) {
    .video_iframe_playlist {
        height: 400px;
    }
}

@media (max-width: 768px) {
    .video_iframe_playlist {
        height: 300px;
    }
}

@media (max-width: 500px) {
    .video_iframe_playlist {
        height: 300px;
    }
}