@media (max-width: 768px) {
    .btn-responsive {
        padding:2px 4px;
        font-size:94%;
        line-height: 1;
        border-radius:3px;
    }
}

@media (min-width: 769px) and (max-width: 1100px) {
    .btn-responsive {
        font-size:90%;
        line-height: 1.2;
    }
}
}