@media only screen and (min-width: 768px) {
    .jcputube.justify-content-center.my-5 iframe{min-width: 725px; min-height: 408px;}
    .jcputube.justify-content-center.my-5 {
        text-align: center;
        /* max-width: 800px; */
    }
}
@media only screen and (max-width: 767px) {
    .jcputube.justify-content-center.my-5 iframe {
        width: -webkit-fill-available;
    }
}