@media (max-width: 768px){
    .embed-container {
        position: relative;
        padding-bottom: 56.25%;
        
        height: 0;
        overflow: hidden;
        max-width: 100%;
        
    }

    .embed-container iframe,
    .embed-container object,
    .embed-container embed {
        position: absolute;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
    }
}