@font-face {
    font-display: swap; 
    font-family: 'Avenir';
    src: url('../avenirltprobook-webfont.eot');
    src: url('../avenirltprobook-webfont.eot?#iefix') format('embedded-opentype'),
         url('../avenirltprobook-webfont.woff2') format('woff2'),
         url('../avenirltprobook-webfont.woff') format('woff'),
         url('../avenirltprobook-webfont.ttf') format('truetype'),
         url('../avenirltprobook-webfont.svg#avenir_lt_pro45_book') format('svg');
    font-weight: normal;
}