.iframe-wrapper {
    width: 100%;
    aspect-ratio: 267 / 476;
}

.iframe-wrapper iframe {
    width: 100%;
    height: 100%;
    border: 0;
}

@media (min-width: 768px) {
    .iframe-wrapper {
        aspect-ratio: 16 / 9;
    }

    .iframe-wrapper iframe{
        width: 267px;
        height: 476px;
    }
}