.bjd-responsive-iframe-cntr {
    position: relative;
    padding-bottom: 71.8%;
    padding-top: 30px;
    height: 0;
    overflow: hidden;
}

.bjd-responsive-iframe-cntr iframe  
{
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}