/* Container styling to maintain aspect ratio */
.wp-block-embed-vimeo .wp-block-embed__wrapper {
    position: relative;
    padding-bottom: 56.25%; /* Forces a 16:9 aspect ratio */
    height: 0;
    overflow: hidden;
    max-width: 100%;
}

/* Force the iframe to fill the container */
.wp-block-embed-vimeo .wp-block-embed__wrapper iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}