@font-face {
    font-family: 'cairo';
    src: 
        url('cairo/cairo-regular.ttf') format('truetype'),
        url('cairo/cairo-light.ttf') format('truetype'),
        url('cairo/cairo-extralight.ttf') format('truetype'),
        url('cairo/cairo-semibold.ttf') format('truetype');
        url('cairo/cairo-bold.ttf') format('truetype'),
        url('cairo/cairo-black.ttf') format('truetype'),
}