.cjvideo {
    position: relative;
    height: 0;
    overflow: hidden;
}

.cjvideo-16x9 {
    padding-bottom: 56.25%;
}

.cjvideo-4x3 {
    padding-bottom: 75%;
}
.cjvideo-playlist {
    padding-bottom: 82%;
}
.cjvideo iframe {
    position: absolute;
    top:0;
      left: 0;
      height: 100%;
    max-width: 100%;
    width: 100%;
}

@media (max-width: 480px) {
    .cjvideo-playlist {
        padding-bottom: 97%;
    }
}