@font-face {
   font-family: 'Ubuntu-B';
   font-display: swap;
   src: url('Ubuntu-B/font.ttf');
}
@font-face {
   font-family: 'Ubuntu-L';
   font-display: swap;
   src: url('Ubuntu-L/font.ttf');
}
@font-face {
   font-family: 'Ubuntu-M';
   font-display: swap;
   src: url('Ubuntu-M/font.ttf');
}