.sf-menu a {
    font-size: 13px;
    padding: 5px 6px;
}

@media (min-width: 992px) and (max-width: 1199px) {
    .sf-menu a {
        font-size: 10px;
    }
}

@media (min-width: 768px) and (max-width: 991px) {
    .sf-menu a {
        font-size: 12px;
    }
}