@font-face {
    font-family: 'Open Sans', Arial, Helvetica, sans-serif;
    AvenirNextCyr-Light.woff2") format('woff2'),
        url("") format('woff'),
        url("") format('truetype');
    font-weight: 300;
    font-style: normal;
}
@font-face {
    font-family: 'Open Sans', Arial, Helvetica, sans-serif;
    src: url("../fonts/subset-AvenirNextCyr-Regular.woff2") format('woff2'),
        url("") format('woff'),
        url(") format('truetype');
    font-weight: 400; 
    font-style: normal;
}
@font-face {
    font-family: 'Open Sans', Arial, Helvetica, sans-serif;
    src: url("") format('woff2'),
        url("") format('woff'),
        url("") format('truetype');
    font-weight: 500;
    font-style: normal;
}
@font-face {
    font-family:'Open Sans', Arial, Helvetica, sans-serif;
    src: url("../fonts/subset-AvenirNextCyr-Bold.woff2") format('woff2'),
        url("") format('woff'),
        url("") format('truetype');
    font-weight: 700;
    font-style: normal;
}