.embed-container {
overflow: scroll; 
-webkit-overflow-scrolling: touch;
    position: relative;
    padding-bottom: 56.25%;
    height: 0;
    overflow: hidden;
}
.embed-container iframe {
    display: block;
    position: absolute;
    top:0;
    left: 0;
    width: 100%;
    height: 100%;
}