@font-face {
    font-family: Fira_Mono;
    src: url('FiraMono-Bold.ttf') format('truetype');
    font-weight: normal;
    font-style: normal;
}
@font-face {
    font-family: Fira_Mono_Regular;
    src: url('FiraMono-Regular.ttf') format('truetype');
    font-weight: normal;
    font-style: normal;
}
@font-face {
    font-family: Fira_Mono_Medium;
    src: url('FiraMono-Medium.ttf') format('truetype');
    font-weight: normal;
    font-style: normal;
}