/*
* Prefixed by https://autoprefixer.github.io
* PostCSS: v8.4.14,
* Autoprefixer: v10.4.7
* Browsers: last 4 version
*/

footer iframe {
    max-width: 100%;
    max-height: 300px;
    -webkit-filter: grayscale(1) brightness(0.7) contrast(1.4);
            filter: grayscale(1) brightness(0.7) contrast(1.4);
}