@media screen and (max-width: 768px) {
    .navbar-brand>img {
    height: 58px;
    }

    #site_nav{
    background: black;
    background-attachment: fixed;
    }

}
.language.text-right {
    margin-top: -5px;
}
@media screen and (max-width: 331px){
.navbar-brand>img {
    height: 56px;
}
}