@font-face {
    font-style: normal;
    font-weight: 500;
    font-family: 'Circular20';
    src: url('Circular20WebCyr-Book.woff2') format('woff2');
}
@font-face {
    font-style: normal;
    font-weight: 600;
    font-family: 'Circular20';
    src: url('Circular20WebCyr-Medium.woff2') format('woff2');
}
@font-face {
    font-style: normal;
    font-weight: 800;
    font-family: 'Circular20';
    src: url('Circular20WebCyr-Black.woff2') format('woff2');
}