body {
    font-family: sans-serif;
}

.tsb {
    font-weight: 600;
}

.tb {
    font-weight: 700;
}

.twr {
    font-weight: 400;
}

.rr {
    font-family:  sans-serif;
    font-weight: 400;
}

.rb {
    font-family:  sans-serif;
    font-weight: 700;
}

@media only screen and (max-width: 425px) {
    .navbar-brand img {
        width: 100px;
        height: auto !important;
    }
}