Livestream Embed Code Help Please

Has anyone embedded a livestream successfully with size dimensions added to the code that will also react to responsive design so they look good on both the computer and mobile layouts?

https://www.newcombny.com/area-web-cams

Try adding to Design > Custom CSS

@media screen and (max-width:767px) {
iframe[src*="microseven"] {
    width: 100% !important;
}
.sqs-block-embed {
    justify-content: center !important;
}
}