@font-face {
    font-family: 'Circular Std Book';
    src: url('CircularStd-Book.eot');
    src: url('CircularStd-Book.eot?#iefix') format('embedded-opentype'),
        url('CircularStd-Book.woff2') format('woff2'),
        url('CircularStd-Book.woff') format('woff'),
        url('CircularStd-Book.ttf') format('truetype'),
        url('CircularStd-Book.svg#CircularStd-Book') format('svg');
    font-weight: 500;
    font-style: normal;
    font-display: swap;
}

@font-face {
    font-family: 'Circular Std Book';
    src: 
        url('CircularStd-Bold.woff2') format('woff2');
    font-weight: 700;
    font-style: normal;
    font-display: swap;
}