@font-face {
    font-family: 'Circular';
    src: url('../fonts/CircularStd-Black.otf') format('otf'),
        url('../fonts/CircularStd-Bold.otf') format('otf'),
        url('../fonts/CircularStd-Book.otf') format('otf'),
        url('../fonts/circular-std-medium-500.ttf') format('truetype');
}