.cryeb-responsive-youtube {
    position: relative;
    width: 100%;
    max-width: 800px;
    aspect-ratio:16/9;
    height: auto;
    overflow: hidden;
    margin: 1em auto;
}

.cryeb-responsive-youtube iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
	max-width: 800px;
    height: 100%;
    border: 0;
}