nav.lang{background:#fff;width:100%;}

nav.lang ul{max-width:400px;width:60vw;margin:0 auto;padding:2vw 0;}
nav.lang li{background:#cbc6be;display:inline-block;width:50%;vertical-align:middle;
box-sizing:border-box;color:#232323;text-align: center;}
nav.lang li a{display:block;font-size:2vw;color:inherit;padding:1vw;
text-decoration:none;line-height: 1.2em;}


nav.lang li:nth-of-type(2n+1){border-radius:30px 0 0 30px;}
nav.lang li:nth-of-type(2n){border-radius:0 30px 30px 0;}

nav.lang li.on{background:#3f3b3b;color:#fff;}


@media screen and (min-width: 1000px) {
    nav.lang li a{font-size:20px;padding:10px;}
    }