@font-face {
    font-family: 'Montserrat';
    font-style: normal;
    font-weight: 400;
    font-display: swap;
    src: url(https://fonts.is-hw.de/montserrat/montserrat-400.eot);
    src: url(https://fonts.is-hw.de/montserrat/montserrat-400.eot?#iefix) format('embedded-opentype'),
         url(https://fonts.is-hw.de/montserrat/montserrat-400.woff2) format('woff2'),
         url(https://fonts.is-hw.de/montserrat/montserrat-400.woff) format('woff'),
         url(https://fonts.is-hw.de/montserrat/montserrat-400.ttf) format('truetype'),
         url(https://fonts.is-hw.de/montserrat/montserrat-400.svg#Montserrat) format('svg');
}