nav .lang li {
    float: left;
    position: relative;
    margin-left: 10px;
    padding-left: 10px
}

nav .lang li:before {
    position: absolute;
    left: 0;
    top: 5px;
    width: 1px;
    height: 15px;
    background: #7b7b7b;
    content: ''
}

nav .lang li:first-child:before {
    content: none
}

nav .lang li a {
    display: block;
    color: #6c757d;
}

nav .lang li a.on {
    color: #4d5eab;
}

nav .lang li a {
    display: block;
    color: #7b7b7b;
}
nav a {
    cursor: pointer;
}