@font-face {
    font-family: 'Roboto-Bold';
    src: url('Roboto-Bold.ttf');
}
@font-face {
    font-family: 'Roboto-Medium';
    src: url('Roboto-Medium.ttf');
}
@font-face {
    font-family: 'Roboto-Regular';
    src: url('Roboto-Regular.ttf');
}
@font-face {
    font-family: 'Roboto-Light';
    src: url('Roboto-Light.ttf');
}