.embed-container {
    position: relative;
    height: 0;
    overflow: hidden;
    max-width: 100%;
}

@media (min-width: 0px) {
    .embed-container {
        padding-bottom: 56.25%;
    }
}

@media (min-width: 768px) {
    .embed-container {
        padding-bottom: 56.25%;
    }
}

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